If you don't want to bother with scales or conversions, here are the volumetric measurements: For a double crust pie, use 2¾ cups flour, 2 cups butter, and ½ cup ice water, plus 2 tablespoons sugar (if using), 1 teaspoon salt, and 1 tablespoon apple cider vinegar. For a single crust pie, use 2 cups flour, 1½ cups butter, and ⅓ cup ice water, plus 1½ tablespoons sugar (if using), ½ teaspoon salt, and 2 teaspoons apple cider vinegar