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Homemade Peanut Butter Frosting

Make easy Homemade Peanut Butter Frosting! This simple recipe uses butter, peanut butter, and powdered sugar for a rich, creamy topping perfect for cakes and cupcakes.

Ingredients

Scale

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

  • 1/2 cup (1 stick / 113g) butter, softened (salted or unsalted based on preference)
  • 1 cup creamy peanut butter
  • 2 cups powdered sugar (sifting recommended)
  • 1 teaspoon vanilla extract
  • 12 tablespoons milk (optional, for desired consistency)
  • (Optional: Pinch of salt, especially if using unsalted butter)

These quantities make enough frosting to generously frost a 1-layer 9×13 inch cake, an 8 or 9-inch 2-layer cake (lightly), or about 12-18 cupcakes. Double if needed for more generous frosting or taller cakes.

Ensure butter is properly softened before starting

Instructions

Let’s whip up this delicious frosting:

1. Cream Butter and Peanut Butter:

  • In a large bowl, place the softened butter and the creamy peanut butter.
  • Using an electric mixer (handheld or stand mixer with paddle attachment), beat the butter and peanut butter together on medium speed until completely smooth, creamy, and well combined. Scrape down the sides of the bowl as needed.

2. Add Powdered Sugar:

  • With the mixer on low speed, gradually add the powdered sugar, about half a cup or one cup at a time. Mix until just incorporated after each addition before adding more. Starting on low prevents a sugar cloud!
  • Once all the sugar is added, increase the speed slightly (to medium-low or medium) and continue mixing until the frosting is well combined and smooth. Scrape the bowl again.

3. Add Vanilla (and Optional Salt):

  • Add the vanilla extract (and a pinch of salt, if using) to the bowl. Mix on low speed until just combined.

4. Adjust Consistency (Optional):

  • Check the frosting’s consistency. If it seems too thick for spreading or piping, add milk, one tablespoon at a time, beating on low speed after each addition until the desired smooth and spreadable consistency is reached. Be careful not to add too much liquid, or it will become too thin.

5. Final Whip (Optional):

  • For extra fluffiness, beat the finished frosting on medium-high speed for another 30 seconds to 1 minute.

6. Use Immediately:

  • Use the Homemade Peanut Butter Frosting immediately to frost cooled cakes, cupcakes, brownies, or enjoy it as a dip!

So fast and easy to make