Crumb Cake by Paula

Ingredients
Yellow cake mix...prepare as on box recipe
3 stick butter
3 1/2 c butter
1 c sugar
3 tsp cinnamon
2 1/2 tsp vanilla

Instructions
Preheat oven to 350 degrees.
Put butter in 9 by 13 pan and melt in oven.
Pour melted butter into large bowl.
In a mixing bowl make yellow cake mix as directed on box.
Pour into 9 by 13 pan used to melt butter.
Bake at 350 degrees 20-25 minutes till no longer liquid.
In bowl with melted butter add flour, sugar, vanilla and cinnamon.
Mix together, crumble onto partially baked cake.
Bake at 350 degrees for another 20 minutes.
Cool completely and sprinkle with powdered sugar.
Enjoy!