Banana Chocolate Crater Cake

From: Lauren at Servingfromhome.com

1 cup butter
 2 cups sugar
 2 eggs beaten
1 tsp. vanilla
3 ripe bananas
3 cups flour
 2 tsp. baking powder
2 tsp. baking soda
 1 cup sour cream
 1 tsp.cinnamon
 1/2 cup brown sugar
 1 1/2 cups (or more) chocolate chips

Cream together butter and sugar.  Add beaten eggs and beat until smooth.  Add vanilla and mashed bananas.  Mix until smooth >Sift flour, baking powder and soda and add to banana mixture, alternating with sour cream.  End with dry ingredients. 

Pour half the batter into a greased 9 X 13 pan.  Combine cinnamon and brown sugar.  Sprinkle half of mixture over batter in pan.Top with half the chocolate chips.  Repeat.  Bake at 350 for forty-five to fifty minutes or until toothpick inserted comes out clean