Crumbiest Crumb Cake - cooking recipe

Ingredients

1 (18 ounce) package duncan hines butter recipe cake mix
3/4 cup water
1/2 cup softened butter
3 large eggs
Topping
3 cups flour
2/3 cup sugar
2/3 cup brown sugar
2 teaspoons vanilla extract
1 1/2 cups butter, melted
2 teaspoons ground cinnamon

Preparation

Preheat oven to 350 degrees.
Grease and flour a 13 x 9 pan.
Mix cake mix, water, softened butter and eggs on low for 30 seconds until moistened.
Beat at medium speed for 4 minutes.
Pour into prepared pan.
Bake for 20 minutes.
Prepare topping.
After 20 minuntes take cake out of oven.
Sprinkle topping evenly over cake.
Bake for 25 minutes or until golden brown.
TOPPING:
In a bowl mix all ingredients together until crumbly.