How to Make It
• In a large bowl, cream butter and sugar until light and fluffy. Add eggs, one at a time, beating well after each addition. Beat in vanilla. Combine the flour, baking powder, baking soda and salt; add to creamed mixture alternately with sour cream, beating well after each addition.
• Spoon a third of the batter into a greased and floured 10-in. tube pan. Combine brown sugar, flour and cinnamon; sprinkle half over batter. Top with half of the berries. Repeat layers. Top with remaining batter.
• Bake at 350° for 55-65 minutes or until a toothpick inserted near the center comes out clean. Cool for 10 minutes before removing from pan to a wire rack to cool completely. Combine glaze ingredients; drizzle over warm coffee cake.