1/2 cup butter
1 cup sugar
1 cup sour cream
2 cups flour
1 tsp. baking soda
1 tsp. vanilla
1-1/2 tsp. baking powder
1-1/2 cup sugar
1 6-oz package chocolate chips
1 tsp. cinnamon
1. cream butter, sugar, and eggs.
2. add remaining ingredients and mix.
3. pour half of batter into a 13x9 inch greased pan.
4. sprinkle half of cinnamon mixture over top.
5. add remaining batter and cover with remaining cinnamon mixture. press down lightly on chocolate chips.
6. bake at 350° for 30 minutes.