1/4 lb. butter
1 c. sugar
2 eggs
1 c. sour cream
1 tsp. vanilla
2 c. flour
1 1/2 tsp. baking powder
1 1/2 tsp. baking soda
1 (6 oz.) pkg. semi-sweet chocolate chips

Cinnamon Sugar: 1/2 cup sugar and 1 teaspoon cinnamon.

Cream butter and sugar; add eggs and vanilla. Add sour cream and blend thoroughly. Add dry ingredients. Grease and flour 13 x 9 pan. Spread 1/2 batter, 1/2 chocolate chips, and cinnamon sugar. Repeat and top with chocolate chips and cinnamon sugar. Bake at 350 degrees for 35 minutes.