Double Peanut Butter Cookies
["1 1/4 c. unsifted flour", "3/4 tsp. baking soda", "1/2 tsp. baking powder", "1/4 tsp. salt", "1/4 c. butter or margarine, softened", "1/2 c. sugar", "1/2 c. firmly packed brown sugar", "1/4 c. shortening", "1/2 c. peanut butter", "1 egg", "2 c. (12 oz.) peanut butter chips"]
["Preheat oven to 375\u00b0.", "Sift together flour, baking soda, powder and salt.", "Cream together butter, sugar and brown sugar. Add shortening, peanut butter and egg, beating until well blended. Gradually add sifted ingredients and mix well.", "Add peanut butter chips, stirring to blend.", "Bake on ungreased cookie sheets. Flatten balls with fork dipped in sugar.", "Bake 10 to 12 minutes. Let cool on cookie sheets.", "Remove from cookie sheets and cool on wire racks.", "Makes 3 1/2 dozen."]
["flour", "baking soda", "baking powder", "salt", "butter", "sugar", "brown sugar", "shortening", "peanut butter", "egg", "peanut butter"]