Chocolate Pudding Cake

1 1/2 c. sugar
2 c. SR flour
4 T. cocoa
1 c. milk
4 T. margarine, melted
2 t. vanilla

Topping:

1 c. sugar
1 c. brown sugar
1/2 c. cocoa

Mix sugar, flour, and cocoa. Add milk, margarine, and vanilla. Stir well. Pour in sprayed 9x13 pan. Combine topping ingredients and sprinkle over cake mixture. Pour 3 1/2 c. water over cake and topping. Bake at 350 degrees for 45 minutes. Yum!