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A slice of crumb-topped banana coffee cake on a white plate, garnished with a banana slice.
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Banana Crunch Cake

Moist banana cake with a thick cinnamon crumb topping. Better than banana bread!
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Prep Time15 minutes
Cook Time45 minutes
Total Time1 hour
Servings: 12
Calories: 372kcal
Author: Corinne Schmitt

Ingredients

Cake

  • ½ cup butter softened
  • 1 cup sugar
  • 3 bananas mashed
  • 2 eggs
  • 1 teaspoon vanilla
  • 2 tablespoons sour cream
  • 1 ½ cups flour
  • 2 teaspoons baking powder
  • ½ teaspoon salt

Crunch Topping

  • ½ cup butter melted
  • ½ cup brown sugar
  • 1 cup flour
  • ¾ teaspoon cinnamon

Instructions

  • Grease and flour an 8x11 inch baking dish.
  • Preheat oven to 350°F.
  • Using a stand mixer, cream together the softened butter and sugar until light and fluffy.
  • Mix in the mashed bananas, eggs, vanilla, and sour cream, beating until smooth and well combined.
  • In a separate bowl, whisk together the flour, baking powder, and salt.
  • Gradually add the dry mixture to the wet ingredients, mixing just until combined and scraping down the sides as needed. Don't overmix.
  • For the crunch topping, combine the flour and brown sugar in a large bowl.
  • Stir in the cinnamon, then drizzle the melted butter over everything.
  • Mix until the texture is crumbly and well combined.
  • Spread the cake batter into your prepared baking dish and scatter the crunch topping evenly over the surface.
  • Bake at 350°F for 45 minutes, or until a toothpick poked into the center comes out clean.
  • Keep an eye on the topping as it bakes—if it starts getting too dark, loosely cover the dish with foil (tented, not touching the surface) and finish baking.
  • Let the cake cool on a wire rack before slicing.

Notes

Use ripe bananas for best flavor. Don't overmix batter after adding flour. Tent with foil if topping browns too quickly.
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Nutrition

Calories: 372kcal | Carbohydrates: 53g | Protein: 4g | Fat: 17g | Saturated Fat: 10g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 69mg | Sodium: 234mg | Potassium: 232mg | Fiber: 2g | Sugar: 29g | Vitamin A: 544IU | Vitamin C: 3mg | Calcium: 54mg | Iron: 2mg