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Featured Image for post Buttermilk Banana Crumb Cake
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4.84 from 6 votes

Buttermilk Banana Crumb Cake

Prep Time20 minutes
Cook Time1 hour
Total Time1 hour 20 minutes
Servings: 9 servings
Author: Barbara Schieving

Ingredients 

Crumb Topping

  • 1 ¼ cups all-purpose flour
  • ½ cup firmly packed brown sugar
  • ¼ cup sugar
  • 2 teaspoons ground cinnamon
  • ¼ teaspoon coarse salt
  • ½ cup 1 stick unsalted butter, melted

Banana Cake

  • 1 ¼ cups all-purpose flour
  • 1 tablespoon buttermilk powder*
  • 1 teaspoon baking powder
  • ¼ teaspoon baking soda
  • ¼ teaspoon salt
  • ½ cup 1 stick unsalted butter, softened
  • 1 cup sugar
  • 2 large eggs
  • 1 cup mashed bananas 2 to 3 medium
  • ¼ cup milk*
  • 2 teaspoons vanilla extract

Icing

  • cup powdered sugar
  • 1 tablespoon water
  • ½ teaspoon vanilla extract

Instructions

  • Preheat oven to 325° F. Line an 8x8-inch glass or ceramic baking dish with parchment. Alternatively, for a metal pan, heat the oven to 350° F and prepare the pan in a similar manner.
  • To make the topping, whisk together flour, brown sugar, sugar, cinnamon, and salt. Stir in melted butter with a fork until moist clumps form. Set aside the topping.
  • For the cake, whisk together flour, buttermilk powder, baking powder, baking soda, and salt in a medium bowl.
  • In a large mixing bowl, cream the butter and sugar together. Add eggs, bananas, milk and vanilla and mix until well combined. Mix in the dry ingredients just until blended.
  • Pour the batter into the prepared pan. Scatter the topping, in clumps, on top of the batter.
  • Bake 55 to 60 minutes until a toothpick inserted in the center comes out clean.
  • To make the icing, whisk together powdered sugar, water and vanilla until smooth. Drizzle over warm cake.

Notes

*The original recipe used ¼ cup buttermilk.