Crumb Cake - cooking recipe

Ingredients

1 Duncan Hines yellow cake mix
2 1/4 c. flour
2/3 c. sugar
2 tsp. cinnamon
pinch of salt
2 sticks margarine, melted
1 tsp. vanilla extract

Preparation

Mix into crumbs.
When cake is done, put crumbs on top and bake for 10 more minutes.
Cake is especially good when crumbs are doubled in amount.
Cool, then add powdered sugar.
Enjoy!