1 box yellow cake mix
2 eggs
1 1/3 c. water

Bake the above at 350 degrees for 17 minutes. Then take out of oven and add crumb mixture on top and bake another 17 minutes. When cool, sprinkle confectioners sugar on top.

CRUMBS:

2 sticks butter, room temperature
2 1/2 c. flour
3/4 c. sugar
2 1/2 tsp. cinnamon

Grease and flour pan.