Light or low-fat sour cream, while ideal for topping things, is not ideal in baking recipes. Use regular sour cream in all your baked goods.
ingredients
Cake
Topping
directions
Preheat oven to 350° F. Cream butter and sugar until smooth. Add eggs one at a time, stirring well after each addition. Add vanilla and stir in sour cream. In a separate bowl, combine dry ingredients and stir into wet ingredients until just incorporated.
In another bowl, combine all ingredients for topping. Scrape half of the coffee cake batter into a greased 8-inch square cake pan and level. Sprinkle half of the topping over cake and cover with remaining batter. Finish with topping and bake for 35 to 40 minutes, until a tester inserted in the center of the cake comes out clean.
Serve warm or at room temperature.
Yield: 1 8-inch square cake.