Banana Bread Coffee Cake
This Banana Bread Coffee Cake is so moist, delicious and is the perfect mashup between banana bread and crumbly coffee cake!
Servings: 9 slices
Ingredients
For the Cake:
- 2 cups all-purpose flour
- 1 tsp baking soda
- 1/2 tsp salt
- 8 Tbsp (1 stick) unsalted butter, melted
- 1/2 cup brown sugar, lightly packed
- 1/2 cup granulated white sugar
- 1/3 cup full-fat sour cream, at room temperature
- 1 large egg, at room temperature
- 2 tsp pure vanilla extract
- 1 tsp banana extract, optional but recommended
- 1 cup banana, mashed (about 3 medium bananas)
For the Cinnamon Sugar Ribbon:
- 1/3 cup light brown sugar, lightly packed
- 1½ tsp ground cinnamon
For the Crumb Topping:
- 1 cup all-purpose flour
- 1 tsp ground cinnamon
- 1/2 cup granulated white sugar
- 1/2 cup light brown sugar, lightly packed
- 6 Tbsp unsalted butter, melted
Instructions
- Preheat oven to 350℉. Line an 8x8" light metal square baking pan with parchment paper or foil, extending the sides of the parchment paper or foil over the edges of the pan to make an overhang. Spray the parchment paper or foil with cooking spray; set aside.
- For the Banana Cake: In a medium bowl, combine the flour, baking soda and salt and whisk until combined. Set aside. In a large bowl, combine the melted butter, brown sugar and white sugar and whisk until blended. Add in the sour cream and the egg and whisk until combined. Add in the vanilla extract and banana extract, whisking well, followed by the mashed banana. Mixture may be a little lumpy; that's okay. Whisk in the flour mixture until just barely combined and no white streaks remain. Do not overmix. Set aside.
- For the Cinnamon Ribbon and Crumble: First make the cinnamon sugar ribbon that will go in between the cake layers. In a small bowl, mix together the brown sugar and the cinnamon until combined. Set aside. For the crumble: In a medium bowl, whisk together the flour, cinnamon, brown sugar, white sugar, and melted butter until a soft crumble comes together.
- Add half of the banana bread cake batter to the prepared pan and smooth it into an even layer. Sprinkle with the entirety of the cinnamon sugar ribbon in an even layer. Top with the remaining banana bread cake batter and smooth out into an even layer. Lastly, crumble the crumb mixture evenly over the cake so you can't really see any cake layer peeking out.
- Bake for approximately 40-50 minutes or until a toothpick inserted near the center comes out clean or with moist, but not super wet, crumbs. Cool on a wire rack for about 20 minutes before cutting, if you cannot wait, or cool completely if desired. Store covered at room temperature. Makes approx. 9-12 slices depending on how small you want the slices.
Notes
Banana extract is an optional ingredient, but when making banana desserts, I love adding it. It just helps impart a punchier banana flavor in my opinion.