Let’s break down the process into easy-to-follow steps. I’ll guide you through each stage.

Step 1: Preheat and Prepare. Preheat your oven to 350°F (175°C) and line a cupcake pan with cupcake liners.

Step 2: Bake Cupcakes. Bake the cake mix according to the cupcake package instructions. Let the cupcakes cool completely.

Step 3: Make Pudding. Meanwhile, make the pudding filling. In a large bowl, combine the instant vanilla pudding mix, cold milk, and sweetened condensed milk. Whisk until thickened, about 5 minutes. Fold in the chopped bananas.

Step 4: Make Whipped Cream. In another large bowl, combine the heavy cream, powdered sugar, and vanilla extract. Beat with a hand mixer on high until light and fluffy, about 5 minutes. (Alternatively, you can beat the cream in the bowl of a stand mixer with a whisk attachment.)

Step 5: Prepare Cupcakes for Filling. Using a paring knife, cut small wells out of the cooled cupcakes.

Step 6: Fill and Top Cupcakes. Fill each cupcake well with the banana pudding mixture. Then, top with the whipped cream.

Step 7: Garnish. Garnish each cupcake with a banana slice, a Nilla wafer, and Nilla wafer crumbles.

These instructions are very simple to do.