Hot Fudge Pudding Cake in a Bag

In the bag:
Baggie #1 - Cake Ingredients:
2 c. flour
1 1/2 c. sugar
1/4 c. cocoa
1/2 tsp. salt
4 tsp. baking powder

Baggie #2 -- Topping:
1 1/2 c. brown sugar
1/2 c. cocoa

From the kitchen:
1/4 c. oil
1 c. milk
3 1/2 c. very hot water

Directions:
Preheat oven to 350 degrees. Mix Baggie #1 with oil and milk. This batter will be thick. Spread in ungreased 9x13 baking dish. Sprinkle Baggie #2 ingredients on top of cake batter. Pour hot water over all. Bake for 45 minutes. When the cake is done, there will be a layer of chocolate cake on top with the chocolate sauce on the bottom.