Old-Fashioned Peanut Butter Cookies
["2 1/2 c. 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. brown sugar", "2 eggs", "1 tsp. vanilla"]
["Mix first 4 ingredients; set aside.", "Beat margarine and peanut butter until smooth.", "Beat in sugars until blended, then eggs and vanilla.", "Add flour mixture.", "Shape into 1-inch balls.", "Place 2-inches apart on ungreased cookie sheets.", "Flatten slightly with fork.", "Bake at 350\u00b0 for 12 minutes.", "Makes 6 dozen."]
["flour", "baking powder", "baking soda", "salt", "margarine", "peanut butter", "sugar", "brown sugar", "eggs", "vanilla"]