Swedish Coffee Cake

Dough
1/3 cup butter
1 cup sugar
1 large egg
1 cup sour cream with 1 1/4 tsp baking soda
1 1/2 cup flour
1 1/2 tsp baking powder
1 tsp vanilla

Topping Mixture
1/4 cup sugar
1/3 cup chopped walnuts
1 tsp cinnamon


Cream butter and sugar with fork. Add egg, mix well. Stir in sour cream with soda until creamy.
Add sifted flour and baking powder, then vanilla. Batter will be stiff.
Pour one half batter into pan, spread evenly. Sprinkle with half of topping. Spread balance of batter and top with remaining topping mixture.
Bake 35 minutes or until done when tested. Cool in pan on rack about 30 minutes before removing.