S - This cake is so easy but so good. Big crumbs on the top.
Ultimate Crumb Cake
1 box Duncan Hines yellow cake mix (red box, do not substitute)
4 eggs
2/3 c. milk
2/3 c. oil
Grease 11"x15" pan. Blend all the above ingredients for 4 minutes. Pour into pan and top with Crumb Topping below. Bake at 350 degrees for 30 to 35 minutes.
CRUMB TOPPING:
4 c. flour
2/3 c. brown sugar
2/3 c. sugar
1 tbsp. cinnamon
3 sticks butter
2 tsp. vanilla
Melt butter; add vanilla. Cool slightly. Pour into the flour, cinnamon and sugar mixture. Crumble with hands, but not too small. Add crumb topping to cake before baking. When cake is done and cooled, sprinkle with powdered sugar.