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Blackberry Crisp

Introduction & Inspiration

There’s nothing quite like a warm, bubbly fruit crisp fresh from the oven, especially when it’s bursting with the sweet-tart flavor of fresh blackberries and crowned with a perfectly golden, crumbly topping. This Blackberry Crisp recipe immediately caught my eye because it promises all that classic comfort with an easy-to-follow method, plus it’s wonderfully adaptable for gluten-free and vegan diets using almond flour and coconut oil! It sounded like the perfect dessert to celebrate berry season.

My inspiration for diving into this particular recipe came from a deep love for simple, rustic fruit desserts that truly let the natural flavor of the berries shine. Blackberry crisp is a timeless favorite, and this version, with its nutty almond flour and oat topping enhanced with walnuts and cinnamon, hinted at a delightful depth of flavor and texture. The addition of lemon zest and juice to the blackberry filling promised an extra layer of brightness.

My goal is to guide you through making this incredibly easy and satisfying Blackberry Crisp. We’ll cover preparing the luscious blackberry filling, crafting the simple yet flavorful crumble topping, and baking it all to golden, bubbly perfection. Served warm with a scoop of vanilla ice cream, it’s pure dessert bliss!

Let’s get ready to bake up a pan of this amazing seasonal treat!

Nostalgic Appeal / Comfort Food Connection

Blackberry Crisp is a quintessential comfort food dessert, deeply rooted in home baking traditions, especially cherished when blackberries are at their peak season in the summer and early fall. It evokes memories of family gatherings, potlucks, lazy Sunday afternoons, and the simple joy of a warm, homemade fruit dessert. The combination of sweet-tart baked blackberries and a buttery, slightly crunchy topping is universally loved.

This recipe, with its classic crumble topping made with oats, nuts, brown sugar, and cinnamon, taps directly into that comforting nostalgia. Fruit crisps and crumbles are timeless favorites, celebrated for their rustic charm and delightful combination of soft, warm fruit and a textured, flavorful topping.

The act of preparing a fruit crisp from scratch – tossing fresh berries, mixing the simple topping by hand – is a comforting kitchen ritual. The aroma of blackberries and cinnamon baking is incredibly inviting and homey.

Making and enjoying this Blackberry Crisp feels like savoring a taste of pure, simple comfort, a timeless dessert that celebrates seasonal bounty and the joy of homemade goodness.

Homemade Focus (Fresh Berries, Simple Crumble Topping)

This Blackberry Crisp recipe is a fantastic example of building delicious, homemade flavor from simple, wholesome ingredients and straightforward techniques. The focus is on showcasing fresh, juicy blackberries and topping them with an easy, from-scratch crumble that can be adapted to be gluten-free and vegan if desired, without compromising on taste or delightful texture.

I love recipes that highlight the natural goodness of seasonal fruit. Tossing fresh blackberries with a bit of sugar, lemon juice and zest for brightness, vanilla for warmth, and cornstarch (to thicken their delicious juices into a luscious sauce) is a simple homemade step that ensures a perfectly balanced sweet-tart and jammy filling.

Crafting the crumble topping is another key homemade element. Whisking together almond flour (for a nutty flavor and gluten-free structure), whole rolled oats, brown sugar, crushed walnuts, cinnamon, and sea salt, then working in firm coconut oil (or cold butter) with your hands until crumbly, is a satisfying, classic technique. This homemade topping is far superior in texture and flavor to any pre-made mix and offers a wonderful crunch.

From preparing the fresh blackberry filling to creating the rustic crumble, every step emphasizes the quality and flavor that comes from simple, thoughtful, homemade preparation.

Flavor Goal

The primary flavor goal of this Blackberry Crisp is a delightful harmony of sweet and intensely tart baked blackberries, infused with bright lemon notes and warm vanilla, all nestled under a buttery (or coconut-oil rich), nutty, cinnamon-spiced crumble topping with a pleasant chewy and crunchy texture.

The fresh blackberry filling, when baked, becomes incredibly soft and juicy, their deep berry flavor concentrated and beautifully balanced by the cane sugar and bright lemon juice and zest. Cornstarch transforms their juices into a luscious, slightly thickened, jammy sauce. Vanilla extract adds a warm, aromatic depth.

The crumble topping provides a wonderful textural and flavor contrast. Almond flour contributes a nutty richness and tender crumb (while being gluten-free); whole rolled oats offer a chewy, wholesome texture; crushed walnuts provide a distinct nutty crunch and flavor; brown sugar adds deep molasses sweetness and helps create those irresistible clumps; cinnamon provides classic warm spice; and sea salt enhances all the flavors. The firm coconut oil (or cold butter) makes the topping rich and helps it bake to a beautiful golden brown.

Served warm with cold vanilla ice cream, the aim is an irresistible contrast of temperatures, textures (gooey fruit, crunchy topping, creamy ice cream), and sweet, tart, spiced flavors – a truly perfect fruit dessert.

Ingredient Insights

Let’s explore the components that make this crisp so delicious:

Blackberry Filling:

  • Fresh blackberries: The star! About 2 pints (24 ounces). Ripe, plump berries are best.
  • Cane sugar (or granulated sugar): Sweetens the filling and helps draw out juices.
  • Cornstarch: Thickens the berry juices into a lovely sauce.
  • Fresh lemon juice & Lemon zest: Brightens the blackberry flavor, adds tang, and balances sweetness. Zest the lemon before juicing!
  • Vanilla extract: Adds warm depth to the fruit filling.

Crumble Topping:

  • Whole rolled oats: Provide chewy texture and wholesome flavor. Not instant oats.
  • Almond flour: Adds nutty flavor, richness, and makes the topping gluten-free. All-purpose flour can be substituted if not needing GF.
  • Brown sugar, packed: Adds sweetness, moisture, and molasses notes, helping to create desirable clumps in the topping.
  • Crushed walnuts (or pecans): Provide essential nutty crunch and flavor.
  • Cinnamon: Classic warm spice for fruit crisps.
  • Sea salt: Balances sweetness and enhances all flavors in the topping.
  • Firm coconut oil (for vegan) or Cold butter, cubed (for classic): Adds richness and binds the topping, helping it become golden and crisp. Must be firm/cold to create those delightful crumbles.

Using fresh blackberries and fresh lemon zest/juice makes a significant difference in the vibrancy of the filling.

Essential Equipment

You’ll need basic baking tools for this simple crisp:

  • An 8×8-inch baking dish (or similar, like a 9-inch pie plate or small oval baker): Glass or ceramic is ideal for even baking.
  • Grease (coconut oil, butter, or cooking spray): For preparing the baking dish.
  • Large mixing bowl: For tossing the blackberry filling ingredients.
  • Medium mixing bowl: For preparing the crumble topping.
  • A Pastry blender, your fingertips, or two knives/forks: For cutting the firm coconut oil or cold butter into the dry topping ingredients.
  • Cutting board and knife (optional, if walnuts aren’t pre-crushed).
  • A Zester/Microplane and Juicer: For the lemon.
  • Measuring cups and spoons.
  • A Spatula: For transferring filling and spreading topping.
  • Wire rack: For cooling the baked crisp slightly.

A sturdy baking dish is key for this bubbly, fruity dessert.

List of Ingredients with Measurements

Here’s the complete list of ingredients, with precise measurements:

Fruit Filling:

  • 2 pints fresh blackberries (24 ounces, about 4-5 cups)
  • 1 tablespoon cane sugar (adjust to berry sweetness)
  • 1 tablespoon cornstarch
  • 1 teaspoon fresh lemon juice
  • 1 teaspoon lemon zest
  • 1 teaspoon vanilla extract

Topping:

  • ¾ cup whole rolled oats
  • ¾ cup almond flour
  • ½ cup packed brown sugar
  • ½ cup crushed walnuts
  • ¾ teaspoon ground cinnamon
  • Heaping ¼ teaspoon sea salt
  • 6 tablespoons (¾ stick) firm coconut oil, cut into small pieces OR cold unsalted butter, cubed

For Serving (Optional):

  • Vanilla ice cream (dairy or non-dairy)

These quantities are perfect for an 8×8 inch baking dish.

Ensure coconut oil or butter for the topping is firm and cold.

Step-by-Step Instructions (Easy Crisp Assembly!)

Let’s bake this delicious Blackberry Crisp:

1. Preheat Oven and Prepare Baking Dish:

  • Preheat your oven to 400°F (200°C).
  • Lightly grease an 8×8-inch baking dish (or similar sized dish like a 9-inch pie plate or small oval baker) with coconut oil, butter, or non-stick cooking spray.

2. Prepare the Blackberry Filling:

  • Gently rinse and pat dry your fresh blackberries if needed.
  • In a large bowl, add the fresh blackberries. Sprinkle with the 1 tablespoon of cane sugar, 1 tablespoon of cornstarch, 1 teaspoon of fresh lemon juice, 1 teaspoon of lemon zest, and 1 teaspoon of vanilla extract.
  • Gently toss the blackberries until they are evenly coated with the sugar, cornstarch, and flavorings.

3. Make the Crumble Topping:

  • In a separate medium bowl, combine the ¾ cup whole rolled oats, ¾ cup almond flour, ½ cup packed brown sugar, ½ cup crushed walnuts, ¾ teaspoon ground cinnamon, and a heaping ¼ teaspoon of sea salt. Whisk or stir these dry ingredients together until well blended.
  • Add the 6 tablespoons of firm, small pieces of coconut oil (or cold, cubed butter) to the dry ingredients.
  • Using a pastry blender, your fingertips, or two knives, cut the coconut oil/butter into the dry mixture until it is crumbly and resembles coarse meal with some small clumps forming. Don’t overwork it; you want to maintain those distinct crumbles for the best texture.

4. Assemble and Bake the Crisp:

  • Scoop the prepared blackberry filling mixture into the greased baking dish, spreading it out into an even layer.
  • Evenly sprinkle the prepared crumble topping mixture over the blackberry filling, covering the fruit completely.
  • Place the baking dish in the preheated oven.
  • Bake at 400°F for 25 to 35 minutes. The crisp is done when the fruit filling is bubbling vigorously around the edges and between the topping, the blackberries are soft and tender, and the topping is beautifully golden brown and fragrant.

5. Cool Slightly and Serve:

  • Carefully remove the hot Blackberry Crisp from the oven.
  • Let it cool on a wire rack for at least 5-10 minutes (or longer, about 15-20 minutes is ideal) before serving. This crucial step allows the incredibly hot fruit filling to thicken slightly as it cools, making it easier to serve and preventing burns.
  • Serve the Blackberry Crisp warm, spooned into bowls, ideally with a generous scoop of vanilla ice cream (dairy or non-dairy)!

The aroma of baking berries and cinnamon will fill your kitchen with pure delight!

Troubleshooting

Fruit crisps are generally very forgiving, but here are a few pointers for perfection:

  • Problem: Topping is soggy or didn’t get crisp/golden.
    • Solution: Ensure coconut oil/butter was firm/cold when cut into the dry ingredients and that the mixture was genuinely crumbly, not pasty or overly wet. Don’t pack the topping down too tightly onto the fruit. Oven temperature might be too low, or it simply needed a few more minutes of baking to achieve that golden color. If your oven has a convection setting, that can help with browning and crisping the top.
  • Problem: Blackberry filling is too watery or runny, even after cooling.
    • Solution: Ensure the correct amount of cornstarch was used and was well mixed with the berries. Very juicy blackberries can release a lot of liquid. Make sure the crisp baked until the filling was visibly bubbling vigorously all over (not just at the edges), as this indicates the cornstarch has activated properly. Letting the crisp cool for a substantial period (20-30 minutes or more) after baking is essential, as the filling sets up considerably as it cools.
  • Problem: Topping burned before the fruit was fully cooked and bubbly.
    • Solution: Your oven temperature might be running hot, or the crisp was placed too close to the top heating element. If the topping starts to brown too quickly, loosely tent the dish with aluminum foil for the remaining baking time. Continue baking until the fruit is tender and bubbling throughout.
  • Problem: Blackberries are still too tart.
    • Solution: The tartness of blackberries can vary greatly. This recipe uses a relatively small amount of sugar in the filling (1 tablespoon) to let the natural fruit flavor shine. If you know your berries are very tart, or if you prefer a sweeter crisp, you can increase the sugar in the filling to 2-3 tablespoons. Serving with sweet vanilla ice cream also helps balance any tartness.

Allowing the crisp to cool sufficiently after baking is crucial for the filling to thicken and set perfectly.

Tips and Variations

Let’s customize this delightful summer berry dessert:

  • Tip: Use fresh, plump, ripe blackberries for the best flavor. If using frozen blackberries, do not thaw them first; toss the frozen berries directly with the sugar, cornstarch, lemon juice/zest, and vanilla. You may need to increase the baking time by 5-10 minutes to ensure the fruit is fully cooked and bubbly.
  • Variation: Create a mixed berry crisp! Substitute some or all of the blackberries with other fresh or frozen (unthawed) berries like raspberries, blueberries, or boysenberries. Adjust sugar in the filling based on the sweetness of your chosen berries.
  • Tip: For extra flavor and crunch, toast the walnuts (or pecans, if substituting) before crushing and adding them to the topping. Spread them on a dry baking sheet and toast in a 350°F (175°C) oven for 5-8 minutes, or in a dry skillet over medium heat for 3-5 minutes, stirring frequently, until fragrant and lightly browned. Cool completely before using.
  • Variation: Incorporate other warming spices into the topping, such as a pinch of ground nutmeg, cardamom, or ginger along with the cinnamon.
  • Tip: If you’re not aiming for a gluten-free or vegan dessert, you can certainly use all-purpose flour instead of almond flour in the topping (the texture will be slightly different), and unsalted butter instead of coconut oil.
  • Variation: Add ½ cup of shredded unsweetened coconut to the topping mixture for an extra layer of flavor and texture.
  • Variation: Instead of or in addition to walnuts, try using chopped pecans, almonds, or even hazelnuts in the crumble topping.

A wonderfully adaptable recipe perfect for showcasing your favorite summer berries!

Serving and Pairing Suggestions

This Blackberry Crisp is the epitome of warm, comforting, homemade fruit desserts.

Serving: Best served warm, spooned generously into bowls.

Classic Pairings:

  • Vanilla Ice Cream: An absolute must! The delightful contrast of the warm, bubbly crisp and the cold, creamy vanilla ice cream is simply heavenly. Choose a dairy-free vanilla ice cream for a completely vegan dessert.
  • Whipped Cream: A dollop of lightly sweetened fresh whipped cream (dairy or coconut-based for vegan) is also a classic and delicious topping.
  • Heavy Cream or Custard: For a simpler, traditional touch, a drizzle of cold heavy cream over the warm crisp is wonderful. A warm vanilla custard sauce (crème anglaise) would also be incredibly luxurious.

Occasions:

  • Perfect for summer barbecues, family dinners, potlucks, or anytime you’re craving a simple yet incredibly satisfying fruit dessert that celebrates blackberry season.

It’s a guaranteed crowd-pleaser that feels like a warm hug in a bowl!

Nutritional Information

This is a fruit-based dessert with a rich, crumbly topping made with almond flour, oats, nuts, brown sugar, and coconut oil/butter. Nutritional info is approximate (per serving, assuming 6-8 servings, before ice cream):

  • Calories: 320-450+
  • Fat: 18-28+ grams (significant amount from coconut oil/butter, almond flour, and walnuts)
  • Saturated Fat: 8-16+ grams (especially if using coconut oil or butter)
  • Cholesterol: 0-30+ mg (0mg if using coconut oil, higher if using butter)
  • Sodium: 100-150+ mg
  • Total Carbs.: 35-45+ grams
  • Dietary Fiber: 5-8 grams (Good source from blackberries, oats, almond flour, walnuts)
  • Sugars: 20-30+ grams (from fruit and added sugars)
  • Protein: 4-7 grams

Provides excellent fiber and some healthy fats from the nuts and almond flour. Sugar and fat content (especially saturated, if using butter or coconut oil) are notable due to the topping ingredients.

Print

Blackberry Crisp

Bake this easy Blackberry Crisp! Features fresh blackberries with a delicious gluten-free (and vegan option) almond flour, oat, and walnut crumble topping.

  • Author: Evelyn

Ingredients

Scale

Here’s the complete list of ingredients, with precise measurements:

Fruit Filling:

  • 2 pints fresh blackberries (24 ounces, about 45 cups)
  • 1 tablespoon cane sugar (adjust to berry sweetness)
  • 1 tablespoon cornstarch
  • 1 teaspoon fresh lemon juice
  • 1 teaspoon lemon zest
  • 1 teaspoon vanilla extract

Topping:

  • ¾ cup whole rolled oats
  • ¾ cup almond flour
  • ½ cup packed brown sugar
  • ½ cup crushed walnuts
  • ¾ teaspoon ground cinnamon
  • Heaping ¼ teaspoon sea salt
  • 6 tablespoons (¾ stick) firm coconut oil, cut into small pieces OR cold unsalted butter, cubed

For Serving (Optional):

  • Vanilla ice cream (dairy or non-dairy)

These quantities are perfect for an 8×8 inch baking dish.

Ensure coconut oil or butter for the topping is firm and cold.

Instructions

Let’s bake this delicious Blackberry Crisp:

1. Preheat Oven and Prepare Baking Dish:

  • Preheat your oven to 400°F (200°C).
  • Lightly grease an 8×8-inch baking dish (or similar sized dish like a 9-inch pie plate or small oval baker) with coconut oil, butter, or non-stick cooking spray.

2. Prepare the Blackberry Filling:

  • Gently rinse and pat dry your fresh blackberries if needed.
  • In a large bowl, add the fresh blackberries. Sprinkle with the 1 tablespoon of cane sugar, 1 tablespoon of cornstarch, 1 teaspoon of fresh lemon juice, 1 teaspoon of lemon zest, and 1 teaspoon of vanilla extract.
  • Gently toss the blackberries until they are evenly coated with the sugar, cornstarch, and flavorings.

3. Make the Crumble Topping:

  • In a separate medium bowl, combine the ¾ cup whole rolled oats, ¾ cup almond flour, ½ cup packed brown sugar, ½ cup crushed walnuts, ¾ teaspoon ground cinnamon, and a heaping ¼ teaspoon of sea salt. Whisk or stir these dry ingredients together until well blended.
  • Add the 6 tablespoons of firm, small pieces of coconut oil (or cold, cubed butter) to the dry ingredients.
  • Using a pastry blender, your fingertips, or two knives, cut the coconut oil/butter into the dry mixture until it is crumbly and resembles coarse meal with some small clumps forming. Don’t overwork it; you want to maintain those distinct crumbles for the best texture.

4. Assemble and Bake the Crisp:

  • Scoop the prepared blackberry filling mixture into the greased baking dish, spreading it out into an even layer.
  • Evenly sprinkle the prepared crumble topping mixture over the blackberry filling, covering the fruit completely.
  • Place the baking dish in the preheated oven.
  • Bake at 400°F for 25 to 35 minutes. The crisp is done when the fruit filling is bubbling vigorously around the edges and between the topping, the blackberries are soft and tender, and the topping is beautifully golden brown and fragrant.

5. Cool Slightly and Serve:

  • Carefully remove the hot Blackberry Crisp from the oven.
  • Let it cool on a wire rack for at least 5-10 minutes (or longer, about 15-20 minutes is ideal) before serving. This crucial step allows the incredibly hot fruit filling to thicken slightly as it cools, making it easier to serve and preventing burns.
  • Serve the Blackberry Crisp warm, spooned into bowls, ideally with a generous scoop of vanilla ice cream (dairy or non-dairy)!

The aroma of baking berries and cinnamon will fill your kitchen with pure delight!

Did you make this recipe?

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Recipe Summary and Q&A

Let’s conclude with a summary and common questions:

Recipe Summary:

Blackberry Crisp features a fresh blackberry filling (tossed with cane sugar, cornstarch, fresh lemon juice, lemon zest, and vanilla extract). This fruity base is topped with a homemade crumble made from whole rolled oats, almond flour, brown sugar, crushed walnuts, cinnamon, sea salt, and firm coconut oil (or cold butter). The crisp is baked in an 8×8-inch dish at 400°F until the fruit is bubbly and the topping is golden brown, then served warm, typically with vanilla ice cream.

Q&A:

Q: Can I make this Blackberry Crisp ahead of time? A: Fruit crisps are generally best served warm on the day they are baked for optimal texture of the topping and the bubbly fruit. However, you can prepare the fruit filling and the crumble topping separately a day ahead. Store the filling covered in the refrigerator, and the topping in an airtight container at room temperature (or refrigerated if using butter). Assemble and bake just before serving for the best warm, bubbly result and crispest topping. A fully baked crisp can also be made a few hours ahead and kept warm or reheated.

Q: How do I store leftovers? A: Store leftover cooled crisp covered in the refrigerator for up to 3-4 days. The topping will soften over time upon refrigeration.

Q: How do I reheat leftover Blackberry Crisp? A: Reheat individual portions in the microwave until warm. For larger portions, or to try and re-crisp the topping a bit, reheat in a 325°F (160°C) oven for 10-15 minutes, until warmed through.

Q: Can I use frozen blackberries? A: Yes. Do not thaw the frozen blackberries first. Toss them directly with the sugar, cornstarch, lemon juice/zest, and vanilla. You may need to increase the baking time by 5-15 minutes to ensure the fruit is fully cooked and bubbly throughout.

Q: Do I have to use almond flour and coconut oil? A: No. For a non-gluten-free version, you can typically substitute all-purpose flour for the almond flour in the topping. For a non-vegan version, you can use cold, cubed unsalted butter instead of the firm coconut oil, cutting it in using the same method. The flavors and textures will be slightly different but still delicious. This recipe is specifically designed to be easily adaptable for gluten-free and vegan needs.