
I was planning to make banana bread but then told my husband about this cake. He did not hesitate before casting his vote. 😉 It was incredibly moist and delicious- and easy to make. I loved the crumb layer inside the cake.
This recipe was adapted from cookiesandcups.com. I weighed the ingredients, used unsalted butter, incorporated whole wheat pastry flour and cinnamon, omitted the glaze, and modified the baking time for a convection oven. We ate it for breakfast and dessert!
Yield: one 9×13-inch cake
For the Cake:
- 120 g (1 cup) all-purpose flour
- 120 g (1 cup) whole wheat pastry flour
- 3 tsp baking powder
- 1 tsp Morton kosher salt
- 1/2 tsp ground cinnamon
- 3 ripe medium-sized bananas, mashed
- 8 T (1 stick, 1/2 cup) unsalted butter, room temperature
- 400 g (2 cups) granulated sugar
- 2 large eggs
- 1 tsp pure vanilla extract
- 1 cup milk (I used 2%)
For the Crumb Filling & Crumb Topping:
- 16 T (2 sticks, 1 cup) cold unsalted butter, cubed
- 432 g (2 cups) light brown sugar
- 120 g (1 cup) all-purpose flour
- 120 g (1 cup) whole wheat pastry flour
- pinch coarse salt
- Preheat oven to 350°F. (I set my oven to true convection.)
- Coat a 9×13 metal baking dish with baking spray, line with parchment paper (overhang on long sides), lightly coat with baking spray; set aside.
- Make the Cake Batter: In a medium bowl whisk together flour, baking powder, salt, and cinnamon. Set aside.
- In a large bowl stir together the mashed bananas, butter, sugar, eggs and vanilla until mixed well.
- Add in the flour mixture and milk in alternating portions and stir until combined. Set batter aside while you make your crumb mixture.
- Make the Crumb Filling & Crumb Topping: In a large bowl combine the cold, cubed butter, light brown sugar, and flours using a pastry blender or fork until a coarse crumb forms.
- To Assemble: Pour 1/2 of the batter into the prepared pan. Top with 1/3 of the crumb mixture. Cover the filling with the remaining batter and then top with remaining crumb mixture.
- Bake for 40 minutes on convection or up to 50-55 minutes in a conventional oven, or until the center is set and a toothpick comes out clean.
- Serve warm or at room temperature. Store leftovers tightly wrapped at room temperature.