1 Duncan Hines yellow cake mix

Follow directions on box. Use cookie sheet at least 1 1/2 inches deep. Bake at 350 degrees until almost done (about 25 minutes or until lightly browned).

CRUMB TOPPING:

2 sticks butter
1 stick butter
3 c. flour
1 c. sugar
1 1/2 tsp. vanilla
1 1/2 tsp. cinnamon

Melt butter and add rest of ingredients. Crumble and place on cake when almost done. Bake additional 15 minutes. Sprinkle confectioners' sugar on top and cut into squares when cool.