Double Banana Coffee Cake doubles down on banana flavor for twice the deliciousness and zero regrets. Moist layers of mashed banana goodness pair with a crumbly, buttery topping. The result? A slice that balances sweetness, texture, and pure comfort. This cake screams “second slice” louder than your conscience says no. Perfect for brunches, lazy mornings, or mid-week indulgences that taste better than they should. Serve it warm or room temperature; either way, it disappears fast. If you’re banana-obsessed, this is the recipe for you—because sometimes, more really is more.

Double Banana Coffee Cake
A moist banana-packed coffee cake topped with a sweet, nutty crumble.
Ingredients
Cake Batter:
- 2 large ripe bananas mashed
- 1/2 cup unsalted butter softened
- 1 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- 1/2 cup sour cream
Crumb Topping:
- 1/2 cup brown sugar
- 1/3 cup all-purpose flour
- 1/4 cup cold butter cubed
- 1/2 cup chopped walnuts or pecans
Instructions
- Preheat the oven to 350°F (175°C). Grease a 9-inch baking dish and set it aside.
- Beat butter and sugar until creamy. Add eggs, mashed bananas, and vanilla extract, mixing until combined.
- In a separate bowl, whisk flour, baking soda, baking powder, and salt.
- Gradually fold dry ingredients into the wet mixture, alternating with sour cream, until smooth.
- Pour batter into the prepared baking dish, spreading evenly.
- Combine brown sugar and flour for the topping. Cut in butter until crumbly, then stir in nuts. Sprinkle over the batter.
- Bake for 35 minutes or until a toothpick comes out clean. Let the cake cool before slicing.