Old Fashioned Peanut Butter Cookies
["2 1/2 c. unsifted flour", "1 tsp. baking powder", "1 tsp. baking soda", "1/4 tsp. salt", "1 c. margarine", "1 c. peanut butter (creamy or chunky)", "1 c. sugar", "1 c. firmly packed brown sugar", "2 eggs", "1 tsp. vanilla"]
["Sift first 4 ingredients.", "In large bowl, beat together margarine and peanut butter.", "Beat in sugars until blended, then eggs and vanilla.", "Add flour mixture.", "Beat until well blended. Chill dough if it is too sticky."]
["flour", "baking powder", "baking soda", "salt", "margarine", "peanut butter", "sugar", "brown sugar", "eggs", "vanilla"]