Ingredients
Method
- Whisk flour, brown sugar, and cinnamon for the crumb topping. Cut in cold butter until pea-sized crumbs form, then chill.
- Preheat oven to 350°F and line a 9×5 inch loaf pan. Whisk melted butter, sugar, eggs, vanilla, and sour cream. Stir in mashed bananas.
- Sprinkle dry ingredients over wet and fold gently until just combined.
- Spoon batter into the pan, top with chilled crumb clusters, and bake 55 to 65 minutes until a toothpick has moist crumbs.
- Cool in the pan 10 minutes, lift out, and cool completely before slicing.
Notes
Use bananas that are heavily speckled or almost black for the fullest flavor. A toothpick inserted in the center should come out with a few moist crumbs, not wet batter; if it’s liquid, bake 5 minutes longer.
