2 eggs 1 stick of margarine, softened 1/2 cup light brown sugar, packed 1 box Duncan Hines butter recipe cake mix bag of peanut butter chips (about 10 oz) (can also add chopped nuts if you like nuts)
Peanut Butter Cream Frosting
1 cup powdered sugar 1/4 tsp. salt 4 Tbl. milk 4 Tbl. margarine, softened 1 tsp. vanilla 1 cup peanut butter
Mix eggs, 1 stick of margarine, brown sugar and cake mix in a bowl. Mix on low speed for 1 minute. Scrape bowl and then mix on low for 2 more minutes. Fold in peanut butter chips by hand. Spread evenly in a greased 9 x 13 pan. Bake at 350 degrees for 30 minutes. Cool completely, frost and cut.
Frosting: Put powdered sugar, salt, milk, 4 Tbl. margarine, vanilla and peanut butter in bowl and mix well. (Add more milk if the frosting isnâ€™t creamy enough.) Frost brownies when they are cool. (Note - this frosting is so good, and would be excellent on a regular box mix of chocolate brownies, too!)