Ponderosa Cake

1 c butter
2 c sugar
2 eggs, beaten
1 t vanilla
3 medium ripe bananas
3 c flour
2 t powder
2 t soda
1 c sour cream
1 t cinnamon
1/2 c brown sugar
1 1/2 chocolate chips

Preheat oven to 350.
Cream together butter and sugar.  Add beaten eggs and beat.  Add vanilla and bananas and mix until smooth.  Sift dry ingredients and add alternately with sour cream, ending with dry ingredients.  

Pour half the batter into a greased 9x13 pan.  Combine cinnamon and brown sugar.  Sprinkle half over batter and half of the chocolate chips.  Repeat with remaining batter, cinnamon/sugar, and chocolate chips.

Bake 45-50 minutes.