Coffee Cake - cooking recipe

Ingredients

3/4 c. butter or margarine, softened
1 1/2 c. sugar
3 eggs
1 1/2 tsp. vanilla
3 c. flour
1 1/2 tsp. baking powder
1 1/2 tsp. baking soda
1/4 tsp. salt
1 1/2 c. sour cream
1/2 c. brown sugar
1/2 c. chopped nuts
1 1/2 tsp. cinnamon

Preparation

Mix the last 3 ingredients for filling.
Mix remaining ingredients; spread 1/3 batter (about 2 cups).
Add 1/3 of filling.
Spread rest of batter.
Top with the rest of the filling.
Bake at 350\u00b0.