Moist banana cake layered with instant vanilla pudding and vanilla wafers, finished with whipped cream — a simple, crowd-pleasing twist on banana pudding.
Preheat the oven to 350°F (175°C). Grease and flour a 9x13-inch baking pan.
In a medium bowl whisk together flour, baking powder, baking soda, and salt; set aside.
In a large bowl, cream the softened butter and granulated sugar until light and fluffy, about 3 minutes.
Add eggs one at a time, mixing well after each. Stir in vanilla and mashed bananas.
Alternately add the dry ingredients and sour cream (and milk if needed) to the batter, beginning and ending with the dry ingredients. Mix until just combined.
Spread the batter into the prepared pan and bake for 35 to 40 minutes, or until a toothpick inserted in the center comes out clean. Allow cake to cool completely in the pan.
Prepare the instant vanilla pudding according to package directions using cold milk. Let set for 2 minutes to thicken.
Once the cake is cool, spread the prepared pudding evenly over the top. Arrange sliced bananas and vanilla wafers over the pudding in a single layer.
Whip the heavy cream with powdered sugar until stiff peaks form. Spread or pipe the whipped cream over the wafers and bananas.
Chill the cake for at least 2 hours before serving to allow layers to set. Garnish with additional crushed wafers if desired.
Notes
Assemble the cake a few hours ahead for best flavor. Store covered in the refrigerator for up to 3 days.