Sugar Cookies
["1/2 c. margarine", "1/2 c. shortening", "1 c. sugar", "2 eggs", "1 tsp. vanilla", "2 3/4 c. flour", "3/4 tsp. salt", "1/2 tsp. baking powder", "1/2 tsp. soda"]
["Chill dough for 3 hours on ungreased cookie sheets. Bake until edges are slightly brown (approximately 8 minutes) at 375\u00b0."]
["margarine", "shortening", "sugar", "eggs", "vanilla", "flour", "salt", "baking powder", "soda"]