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Square slice of banana cake with peanut butter topping on a ceramic plate

Banana Cake with Peanut Butter Topping Small-Batch Recipe

This Banana Cake with Peanut Butter Topping is a soft, moist small-batch dessert with a rich peanut butter finish. It is an easy treat to make when you want a comforting homemade cake with simple flavors.
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Prep Time 10 minutes
Cook Time 24 minutes
Total Time 34 minutes
Servings: 9 servings
Course: Dessert
Cuisine: American
Calories: 280
Ingredients Method Notes

Ingredients
  

Dry ingredients
  • 1 1/2 cups whole wheat pastry flour
  • 1 teaspoon baking powder
  • 1 teaspoon baking soda
  • Pinch of salt
Wet ingredients
  • 1/4 cup sugar
  • 1/2 cup maple syrup
  • 1/2 cup banana puree
  • 1/2 cup oil
  • 1/4 cup water, plus additional as needed for frosting consistency
  • 1 beaten egg (or 4 teaspoons flax for vegan option)
Peanut butter topping
  • 1/4 cup natural peanut butter
  • 2 tablespoons sugar

Method
 

Preparation
  1. Heat the oven to 350°F / 175°C and grease a 9x9 baking dish.
  2. Combine whole wheat pastry flour, baking powder, baking soda, salt, and flax if using in a large bowl.
  3. In another bowl, mix sugar, maple syrup, banana puree, oil, water, and beaten egg until combined.
  4. Add the wet mixture to the dry ingredients and stir until just combined. Spread the batter evenly into the prepared baking dish.
Baking
  1. Bake the cake for 20-24 minutes, until a knife inserted into the center comes out mostly clean.
Topping
  1. Whisk natural peanut butter, sugar, and additional water as needed until the topping is smooth and spreadable.
  2. Allow the cake to cool completely, then cover with the peanut butter topping and slice to serve.

Notes

Let the cake cool completely before adding the peanut butter topping to help keep the topping smooth and spreadable.