Chocolate Chip Sour Cream Cake

Thanks to T.bird, from Bless This Food. She has pictures in her posting of this recipe!

1 stick butter, at room temperature
1 1/2 cups sugar
3 eggs, separated
1 1/2 teaspoons vanilla extract
16 ounces sour cream
3 cups all-purpose flour
1 teaspoon baking powder

1 1/2 teaspoons baking soda

12 ounces chocolate chips

1/2 cup sugar

1 teaspoon cinnamon

Preheat oven to 350°.

In a large bowl, cream butter and 1 1/2 cups sugar, then mix in the egg yolks and vanilla. Sift flour, baking soda and baking powder together into a separate bowl. Alternately add sour cream and then dry ingredients into butter mixture. Beat eggs whites until stiff, then fold into batter. Mix last 1/2 cup sugar and cinnamon together in a separate, small dish.

In a greased 9″x13″ pan, pour in half of the cake batter. Sprinkle the top with half of the cinnamon-sugar mixture and half of the chocolate chips. Pour remaining batter on top, sprinkling the top with the remaining cinnamon-sugar and chocolate chips.

Bake for 40 to 50 minutes, or until a tester comes out clean.