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Slice of banana oatmeal cake on a spatula on a wooden cutting board.
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4.39 from 34 votes

Banana Oatmeal Cake

This moist Banana Oatmeal Cake is made with bananas and oats. It’s so delicious you might want to eat for dessert AND breakfast!
Prep Time10 mins
Cook Time40 mins
Additional Time30 mins
Total Time1 hr 20 mins
Course: Desserts
Cuisine: American
Keyword: Banana oatmeal cake
Servings: 8 slices
Calories: 343kcal
Author: Lynda


  • ¾ cup all-purpose flour
  • 1 and one-third cup rolled oats
  • 1 tsp. baking soda
  • ½ tsp. salt
  • ½ cup unsalted butter softened
  • cup light brown sugar
  • 2 large eggs room temperature
  • 1 cup ripe mashed bananas
  • 1 tsp. vanilla extract
  • ¾ cup rolled oats
  • cup cup light brown sugar
  • 2 tbsp. butter melted and cooled
  • ½ tsp. cinnamon


  • Preheat oven to 350 degrees. Prepare an 8 x 8 baking pan.
  • In a medium bowl, combine the flour, oats, baking soda, and salt. Set aside.
  • In a large bowl, cream the butter and brown sugar on medium speed of an electric mixer for approximately 3 minutes. Add eggs one at a time until well combined. Add bananas and vanilla.
  •  Add the flour mixture, beating until well combined. Pour into prepared pan and set aside.
  • For the topping, in a medium bowl combine the rolled oats, brown sugar, melted butter, and cinnamon together until crumbly. Generously sprinkle the cake with the topping mixture.
  • Bake for 35 to 40 minutes or until a cake tester inserted into the center of the cake comes out clean. Cool for 20 to 30 minutes.



Serving: 1slice | Calories: 343kcal | Carbohydrates: 45g | Protein: 5g | Fat: 17g | Saturated Fat: 10g | Polyunsaturated Fat: 6g | Cholesterol: 85mg | Sodium: 352mg | Fiber: 2g | Sugar: 26g