Chocolate Chip Sour Cream Cake Recipe

Directions:

1. Grease a 9X13 baking pan; set oven at 350 degrees;
2. In large bowl, cream butter and 1 1/2 cups sugar; mix in egg yolks, sour cream and vanilla;
3. In medium bowl, sift together flour, baking powder, baking soda,. and salt; stir into butter mixture;
4. Beat egg whites until they hold stiff peaks; fold into batter;
5. In small bowl, mix cinnamon with remaining sugar and chocolate chips;
6. Pout half the batter into the greased pan;
7. Sprinkle with half the cinnamon-sugar-choco chip mixture;
8. Pour remaining batter on top;
9. Sprinkle with remaining cinnamon-sugar-choco chip mixture;
10. Make 40 to 50 minutes or until toothpick comes out clean.