Crumb topping:
1/3 C. butter
1 C. brown sugar
2 Tbs. cinnamon
Blend all the cake mix ingredients together
and layer half the mix in a 9x13"cake pan.
Add half the crumbs then the last of the batter
and end with crumbs on top.
Bake at 350F for 50-55 min. in a 9x13 pan.
This is a very rich and moist cake.