Rich Peanut Butter Bars
["1/2 c. peanut butter", "1/2 c. margarine", "1 1/2 c. sugar", "2 eggs", "1 1/2 c. flour (self-rising)", "1 tsp. vanilla"]
["Heat oven to 325\u00b0.", "Grease and flour 9 x 13 x 2-inch pan. Melt peanut butter and margarine in bowl over hot water.", "Add remaining ingredients.", "Stir until blended.", "Bake 25 to 30 minutes.", "Cool.", "Cut into squares.", "Yields approximately 2 dozen."]
["peanut butter", "margarine", "sugar", "eggs", "flour", "vanilla"]