Sugar Cookies
["1 c. oil", "1 c. butter", "1 c. powdered sugar", "1 c. granulated sugar", "3 eggs", "1/2 tsp. cream of tartar", "1/2 tsp. baking soda", "1/2 tsp. salt", "1 tsp. vanilla", "5 1/4 c. flour"]
["Mix all ingredients together.", "Chill.", "Roll in balls and dip in sugar.", "Press flat with bottom of glass.", "Bake at 350\u00b0 for 10 to 12 minutes."]
["oil", "butter", "powdered sugar", "sugar", "eggs", "cream of tartar", "baking soda", "salt", "vanilla", "flour"]