Cinnamon Coffe Cake

1/3 cup butter
3/4 cup sugar
2 eggs
1 cup flour
1/4 cup cornstarch
2 tsp. baking powder
1/2 tsp. salt
1/8 tsp. cinnamon
1/2 cup milk
Topping:
1/3 cup brown sugar
1/2 tsp. cinnamon
1/4 cup chopped nuts (optional)

-cream butter and sugar - add eggs - sift dry ingredients together - add alternately with milk
-put in greased 8" pan
-mix topping and sprinkle over cake
-bake at 375 degrees for 30 min (or until inserted toothpick comes out clean)