Cake: Cover oatmeal with hot water and let set for 20 minutes.
Meanwhile, mix together dry ingredients.
Add margarine, eggs, vanilla extract
and mix well.
Add oatmeal and mix.
Pour into a 13 x 9-inch pan and bake at 350 degrees
F for 30 minutes.
Spread Topping on while hot.
Topping: While cake is baking, mix together all ingredients. When cake is done,
but still hot, spread topping on and return to the oven for 15 minutes.