Hot Fudge Pudding Cake

My cousin Jamie gave me this recipe with the instructions "it MUST be served over ice cream". Well, Abbott eats ice cream like it's going out of style. If I buy a carton of ice cream at the store he will devour it in days. So we usually don't have ice cream but we ate this cake with whipped cream and it was good! It was reminiscent of my dad's Wacky Cake. I like that it uses ingredients that I always have on hand!

Ingredients
1 cup all-purpose flour
3/4 cup white sugar
2 tablespoons Hershey's cocoa powder
2 teaspoons baking powder
1/4 teaspoon salt
1/2 cup milk
1/3 cup butter, melted
1 1/2 teaspoons vanilla extract
Topping
1 cup packed brown sugar
1/4 cup Hershey's Cocoa Powder
1 1/4 cups hot water

Directions
Combine sugar, flour, cocoa, baking powder and salt. Stir in milk, butter and vanilla; beat until smooth.
Pour batter into ungreased 9-inch square baking pan. Stir together the brown sugar and remaining cocoa; sprinkle mixture evenly over batter. Pour hot water over top; do not stir.
Bake at 350 degrees for 45 minutes or until center is almost set. Remove from oven and let stand 15 minutes.