Banana Crumb Coffee Cake (Printable)
Buttery banana coffee cake with cinnamon crumb and optional glaze; moist, easy, perfect for breakfast or coffee.
# What You'll Need:
→ Cake
01 - 1 1/2 cups all-purpose flour
02 - 1 teaspoon baking powder
03 - 1/2 teaspoon baking soda
04 - 1/4 teaspoon salt
05 - 1/2 teaspoon ground cinnamon
06 - 1/2 cup unsalted butter, softened
07 - 3/4 cup granulated sugar
08 - 2 large eggs
09 - 1 teaspoon vanilla extract
10 - 3 ripe bananas, mashed
11 - 1/2 cup sour cream
→ Crumb Topping
12 - 1/2 cup all-purpose flour
13 - 1/3 cup light brown sugar, packed
14 - 1 teaspoon ground cinnamon
15 - 1/4 cup unsalted butter, cold and cubed
→ Glaze (optional)
16 - 1/2 cup powdered sugar
17 - 1 to 2 tablespoons milk
# How To Make:
01 - Preheat oven to 350°F. Grease a 9-inch square baking pan or line with parchment paper.
02 - In a medium bowl, whisk flour, baking powder, baking soda, salt, and cinnamon for the cake.
03 - In a large bowl, beat softened butter and granulated sugar until light and fluffy. Incorporate eggs one at a time, followed by vanilla extract.
04 - Mix mashed bananas and sour cream into the creamed mixture until thoroughly blended.
05 - Gradually fold dry ingredients into wet mixture, stirring until just combined. Avoid overmixing.
06 - Pour batter into the prepared baking pan and level the surface.
07 - In a bowl, mix flour, brown sugar, and cinnamon for the topping. Cut in cold, cubed butter with a pastry cutter or forks until coarse crumbs form.
08 - Evenly distribute the crumb mixture over the batter.
09 - Bake for 35 to 40 minutes, or until a toothpick inserted in the center comes out clean.
10 - Allow cake to cool in the pan for 15 minutes.
11 - If desired, whisk powdered sugar with milk to your preferred drizzling consistency. Drizzle over cooled cake.
12 - Cut into portions and serve.
# Expert Tips:
01 -
- That buttery cinnamon streusel seems fancy but comes together in minutes, and makes the whole house smell irresistible.
- It’s the softest banana cake I’ve ever made, so it reliably disappears by the second cup of coffee.
02 -
- The first time I rushed and overmixed, the cake came out tough and less banana-y.
- Chilling the butter for crumb topping keeps those streusel clusters crisp instead of melting away in the oven.
03 -
- Use a fork to smash bananas for a rustic texture—no blender required.
- Don’t skip lining the baking pan with parchment if you want easy, picture-perfect slices.