Crumb Cake - cooking recipe

Ingredients

Cake
1 (18 1/4 ounce) box butter recipe cake mix
1/4 cup butter, softened
4 large eggs
1 cup water
Crumb Topping
1 1/2 cups butter (VERY SOFT-almost melted)
3 cups flour
1 cup sugar
3 teaspoons vanilla
3 teaspoons cinnamon

Preparation

Grease and flour a cookie sheet with sides (11 x 17 or 10 1/2 x 15) just watch the time.
Mix cake using above ingredients.
Spread in cookie sheet.
Bake 350\u00b0 for 20 minutes (20 minutes is the time for the 10 1/2 x 15 pan), so a little less time if you are using the bigger pan.
I like the 11 x 17 pan.
Crumbs: Add ingredients to bowl and mix together.
Spread in chunks covering cake.
Bake 15 minutes more.
Cool.
Sprinkle with powdered sugar.