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Moist, Delicious Banana Chocolate Chip Cake with Peanut Butter Frosting
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4.59 from 36 votes

Banana Chocolate Chip Cake with Peanut Butter Frosting

This Banana Chocolate Chip Cake with Peanut Butter Frosting is fluffy, moist, and so delicious!
Prep Time20 minutes
Cook Time25 minutes
Additional Time45 minutes
Total Time1 hour 30 minutes
Course: Dessert
Cuisine: American
Servings: 15 servings

Ingredients

For the Banana Chocolate Chip Cake Layers

  • 1 ½ sticks unsalted butter, slightly softened (170g)
  • 2 cups white sugar (400g)
  • 3 large eggs, room temperature (Place the eggs in a bowl of warm water for 5 minutes if you are in a hurry.)
  • 3 cups cake flour (see Note below if you do not have cake flour) (342g)
  • 1 Tablespoon baking powder (8g)
  • ½ teaspoon baking soda (3g)
  • ½ teaspoon salt (3g)
  • 1 ½ cups buttermilk ( see Note below for buttermilk substitute) (363g)
  • 2 teaspoons vanilla extract (8g)
  • 1 ½ cups mashed banana (3 medium bananas) (277g)
  • 1 cup mini chocolate chips- adjust amount to your liking (170g)

For the Peanut Butter Frosting

  • 1 cup Creamy Peanut Butter Do Not Use Natural or Reduced Fat . We have used Jif and Peter Pan Creamy brands. (255g)
  • 2 sticks unsalted butter, softened (226g)
  • ½ teaspoon salt (optional to cut sweetness) (3g)
  • 4 to 5 cups confectioners sugar (depending on how soft you want the frosting to be) (460g-575g)
  • ¼ cup to ½ cup 60g to 120g milk - use more if needed to reach the consistency you like
  • 2 teaspoons vanilla extract (8g)

Instructions

For the Banana Chocolate Chip Cake Layers

  • Preheat oven to 350 degrees, grease and flour three 8x2 inch round pans. You could use two 9 inch pans it you do not have 8 inch pans.
  • In a medium bowl, whisk the flour, baking powder, baking soda and salt for 30 seconds, set aside.
  • In another bowl, add the buttermilk, vanilla and mashed bananas.  Blend and set aside.
  • In the bowl of your mixer, add the slightly softened butter and mix at medium speed until smooth.  Gradually add the sugar and continue to mix on medium speed for 3 to 5 minutes until lightened in color and fluffy.  Add the eggs one at a time mixing until the yellow of the yolk disappears.
  • Alternately add the flour mixture and buttermilk mixture, beginning and ending with the dry ingredients (3 additions of dry ingredients and 2 of liquid.  Do not mix above medium  speed or over mix the batter.  After mixing, fold in the chocolate chips.
  • Pour batter into prepared pans and bake for 25 to 30 minutes.  Check at 22 minutes, cake is done with a toothpick comes out clean or with just a few crumbs attached.  
  • Cool in pans 5 to 10 minutes on a cooling rack before turning out.
  • For the Peanut Butter Frosting
  • In the bowl of your mixer add the butter and mix on medium speed until the butter is softened and smooth.  Add the peanut butter and salt, mix until blended.
  • Gradually add the powdered sugar alternately with the milk. 
  • Add vanilla and mix on medium speed 4 to 5 minutes until smooth.
  • Makes 4 ½ to 5 ½ cups depending on the amount of powdered sugar and milk used.  It is enough to fill and

Notes

  • Substitute for Buttermilk:  To a measuring cup, add 1 Tablespoon plus 2 teaspoons vinegar or lemon juice.  Add milk  to the  11/2 mark, stir.   Wait 5 minutes and it is ready to use.
  • Substitution for Cake Flour:  Using all purpose flour (plain in the UK)  to make Cake Flour:  For each cup of flour in a recipe, remove 2 Tablespoons of flour and replace with 2 Tablespoons cornstarch (cornflour in the UK). This recipe has 3 cups of flour so you will measure out 3 cups of all purpose flour, remove 6 Tablespoons and replace with 6 Tablespoons cornstarch, whisk to blend.
For the Peanut Butter Frosting
*Peanut butter brands labeled "Natural" that I have tried do not work as well with this recipe. The   consistency isn't smooth and creamy.  I have used Jif and Peter Pan Creamy with good results!