Combine dry cake ingredients in a 9 inch square pan. Stir in milk, butter, and vanilla. Spread batter in pan. Mix topping sugars and cocoa together and sprinkle over batter. Pour water over all (do not mix) and bake at 350 for 40 to 45 minutes. Serve warm with cream.
Recipe by Five Wooden Spoons at https://www.fivewoodenspoons.com/2013/04/29/chocolate-pudding-cake/