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Banana-Blueberry Oat Cake

Prep Time 20 minutes
Cook Time 50 minutes
Total Time 1 hour 10 minutes
Servings 10 slices
Calories 420
A moist and flavorful cake combining ripe bananas and blueberries, topped with creamy buttermilk frosting and garnished with fresh fruit and toasted oats.

Ingredients

Butter and Sugar

  • 1 cup unsalted butter, softened
  • 2.5 cups granulated sugar
  • 4 large eggs (room temperature)
  • 1 tablespoon vanilla extract

Flours and Leavening

  • 2.75 cups all-purpose flour (divided)
  • 1.5 tablespoons additional all-purpose flour
  • 0.33 cup oat flour
  • 0.33 cup quick-cooking oats
  • 2 teaspoons baking powder
  • 2 teaspoons baking soda
  • 1.25 teaspoons kosher salt
  • 0.5 teaspoon ground cinnamon
  • 0.25 teaspoon ground ginger

Banana and Dairy

  • 2 cups mashed ripe banana (about 472 grams)
  • 1 cup whole buttermilk (room temperature)

Blueberries

  • 1.5 cups fresh blueberries

Garnishes and Toppings

  • as desired fresh blueberries, banana slices, toasted quick-cooking oats

Instructions 

  • Preheat oven to 350°F (180°C). Line two 9-inch round pans with parchment and spray with baking spray.
  • Cream butter and sugar until fluffy, then add eggs one at a time, beating well. Mix in vanilla.
  • Whisk together flour, oat flour, oats, baking powder, baking soda, salt, cinnamon, and ginger. Mix mashed banana with buttermilk.
  • Alternate adding flour mixture and banana mixture to the butter mixture, then fold in floured blueberries. Divide batter into pans and bake for 50 minutes.
  • Cool, level layers, then assemble with frosting. Decorate with blueberries, banana slices, and toasted oats.

Notes

Ensure to evenly distribute batter and avoid overmixing for a tender cake.
Calories: 420kcal
Cost: $15
Course: Dessert
Cuisine: American
Keyword: banana, Blueberry, cake