Heat oven to 375 degrees. ... dry muffin mix, sour cream, milk and egg. Stir ... remaining batter over blueberry layer. Spread remaining fruit on ... Drizzle over hot coffeecake.
1. Make topping: In small ... at medium speed, cream butter and sugar until light; ... powder, soda and sour cream; gently stir in blueberries. ... desired. Makes 8 servings.