Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 325°F (165°C) and prepare an 8x8 metal baking pan by greasing it with unsalted butter and lining it with parchment paper.
- In a medium saucepan, melt the unsalted butter over medium heat, stirring occasionally until golden brown, about 5-7 minutes.
- Combine flour, brown sugar, chopped walnuts, and kosher salt in a mixing bowl. Add browned butter and mix until crumbly.
- Whisk together all-purpose flour, baking soda, brown sugar, and ground cinnamon in a separate bowl.
- Blend browned butter, granulated sugar, egg, vanilla extract, sour cream, and mashed bananas until smooth.
- Fold the dry mixture into the wet mixture until just combined, leaving streaks of flour.
- Spread half of the batter in the prepared pan, sprinkle half of the cinnamon sugar over it, then dollop the remaining batter on top.
- Sprinkle the chilled crumble topping evenly over the batter.
- Bake for 45-50 minutes or until a toothpick comes out clean. Allow to cool for 45 minutes.
- Whisk together powdered sugar, maple syrup, and milk for the glaze, then drizzle over the cooled cake.
Nutrition
Notes
Use ripe bananas for maximum sweetness and flavor. Don't overmix to maintain a light texture. Chill the crumble topping for best results.
