Tri-Level Brownies

-Part 1-
1/2 cup flour
1/4 tsp. salt
1/4 tsp. baking powder
1/2 cup brown sugar
6 Tbl melted margarine
1 cup oatmeal

Mix to form crumbs and press into 9″x13″ pan. Bake at 350* for 6-10 minutes.

-Part 2-
Mix together:
3 Tbl cocoa
5 T. margarine
3/4 cup sugar

Then add:
1 egg
2/3 c. flour
1/4 tsp. baking powder
1/4 tsp. salt
1/4 cup milk
1/2 tsp. vanilla
1/2 tsp. butter flavor

Mix all together and spread over Part 1. Bake until done.

-Part 3-
When cooled, frost with:

Mix:
1/4 cup butter or margarine
1/3 cup cocoa
1-1/2 cup powdered sugar
5 Tbl milk
1 tsp. vanilla flavor
1 tsp. butter flavor