This is my version of a bakery style blueberry buckle. I especially like this recipe because it has walnuts in the crumb topping on a moist cake which is perfect for breakfast or brunch.
03To prepare the cake, sift flour, baking powder, baking soda and salt. Combine butter, sugar, egg and vanilla in a mixing bowl and beat until evenly blended. Turn to low speed; add flour mixture alternately with buttermilk and beat until blended.
04Stir in 1 cup berries. Turn into pan and spread evenly. Scatter remaining 1 cup berries over top and sprinkle with crumb topping. Bake 45 minutes or until nicely browned and edges of cake begin to pull away from sides of pan. Cool on wire rack.