Banana Bread Crumb Cake Ingredients 2 cups flour 3 tsp baking powder 1 tsp salt 3 ripe bananas 1/2 cup butter, room temperature 2 cups granulated sugar 2 eggs 1 tsp vanilla 1 cup milk Crumb Filling and topping 1 cup cold butter, cubed 2 cups light brown sugar 2 cups flour optional glaze 1