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Banana Blueberry Crumb Cake

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  • Author: Olivia
  • Prep Time: 15 mins
  • Cook Time: 45 mins
  • Total Time: 1 hour
  • Yield: 9 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

A moist and flavorful crumb cake made with ripe bananas and juicy blueberries, topped with a buttery streusel crumble for the perfect breakfast or dessert treat.


Ingredients

Units Scale
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1/2 cup unsalted butter, softened
  • 1/2 cup granulated sugar
  • 1/4 cup brown sugar
  • 2 ripe bananas, mashed
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup fresh or frozen blueberries
  • 1/4 cup milk
  • For the crumb topping:
  • 1/3 cup brown sugar
  • 1/3 cup all-purpose flour
  • 1/2 teaspoon cinnamon
  • 3 tablespoons unsalted butter, cold and cubed

Instructions

  1. Preheat oven to 350°F (175°C). Grease an 8-inch square baking dish or line with parchment paper.
  2. In a bowl, whisk together flour, baking soda, baking powder, and salt.
  3. In a large bowl, cream butter with granulated sugar and brown sugar until light and fluffy.
  4. Add mashed bananas, eggs, and vanilla extract. Mix until well combined.
  5. Add dry ingredients alternately with milk, mixing just until incorporated.
  6. Gently fold in blueberries.
  7. Pour batter into prepared pan and smooth the top.
  8. In a small bowl, mix brown sugar, flour, and cinnamon for the crumb topping. Cut in butter using a fork or your fingers until mixture resembles coarse crumbs.
  9. Sprinkle crumb topping evenly over the batter.
  10. Bake for 40–45 minutes, or until a toothpick inserted in the center comes out clean.
  11. Let cool slightly before slicing and serving.

Notes

  • Use overripe bananas for maximum flavor and sweetness.
  • If using frozen blueberries, do not thaw before adding to the batter.
  • This cake stores well in an airtight container at room temperature for up to 3 days.

Nutrition

  • Serving Size: 1 slice
  • Calories: 320
  • Sugar: 22g
  • Sodium: 160mg
  • Fat: 14g
  • Saturated Fat: 8g
  • Unsaturated Fat: 5g
  • Trans Fat: 0g
  • Carbohydrates: 45g
  • Fiber: 2g
  • Protein: 4g
  • Cholesterol: 55mg