1 box yellow cake mix
1 c. water
1/2 c. caramel ice cream topping
1/2 c. peanut butter
3 eggs

FILLING:

1/2 c. firmly packed brown sugar
2 tbsp. flour
1 tbsp. butter, softened
1 tbsp. peanut butter

Mix cake mix and then pour half of the batter in a bundt pan. Mix the filling and then pour over the cake. Pour remainder of cake mix into the pan. Bake at 350 degrees for about 40 minutes or until done.