Magic Bars
["2/3 c. margarine", "4 eggs", "1 1/2 c. brown sugar", "1 1/2 c. granulated sugar", "2 c. self-rising flour", "3/4 c. peanut butter", "1 tsp. vanilla"]
["Mix margarine, eggs, vanilla and sugar.", "Slowly add flour. Stir peanut butter in last.", "Pour in cake pan, 9 x 12-inches. Bake at 350\u00b0 for 30 minutes."]
["margarine", "eggs", "brown sugar", "sugar", "flour", "peanut butter", "vanilla"]