Banana Chocolate Marble Cake

Banana Chocolate Marble Cake

Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Author Lilcookie


  • 1 large egg
  • 2 bananas mashed
  • 1 tsp vanilla extract
  • A pinch of salt
  • 1/3 cup maple syrup
  • 1/2 cup sugar
  • 1/4 cup vegetable oil we used canola oil
  • 1/4 cup smooth unsweeten peanut butter
  • 3/4 cup whole milk
  • 1 1/4 cup flour
  • 1 cup rolled oats
  • 2 tsp baking powder
  • 3 tbsp cocoa powder
  • Confectioner sugar for decoration optional


  1. Preheat the oven to 340°F/170°C. Grease an 8.6 inch (22 cm) kugelhopf bundt pan, set aside.
  2. In a large bowl whisk together egg, mashed bananas, vanilla extract, salt, maple syrup, peanut butter, and milk until light and fluffy.
  3. Add in flour, rolled oats, and baking powder; stir until well combined. Set aside 2/3 of the batter.
  4. Add the cocoa powder to the remaining batter and mix until combined.
  5. Spoon batters into the prepared pan in 2 layers, alternating spoonfuls of vanilla and chocolate to simulate a checkerboard. To create marbling, run a table knife (or wooden skewer) through the batters in a swirling motion.
  6. Bake until a cake tester comes out clean, 35-45 minutes. Transfer pan to a rack to cool 10 minutes. Turn out cake on to a serving plate, frost with confectioner sugar and serve.