1001 Cookie Mix Spoon flour into measuring cup and level with spatula. Put in a large bowl with at least a 4-quart capacity. Measure sugar, baking powder and salt into flour. Stir until mixture is thoroughly blended. Add butter and use pastry blender or clean hands to work into dry ingredients until mixture resembles coarse meal. Store covered in airtight container in refrigerator or freezer. Do not press down. Use mix at room temperature. Spoon lightly into measuring cup level with spatula. Notes: Do not sift flour. Spoon it lightly into a standard measuring cup and level off. If you use margarine in this mixture, do not use diet, whipped or soft versions. Have all ingredients at room temperature.