Directions ~- ~- Combine Peanut Butter, Margarine, Vanilla And Liquid Brown Sugar. Mix Until Smooth. Beat In Eggs. Stir In Remaining Ingredients. Mix Well. Spoon Batter Into A Greased 13X9X2 Inch Baking Pan. Spread Smooth. Bake In A 350F Oven 35 Minutes Or Until Done. Makes 36 Squares.