Since tomatoes are difficult to peel with a knife or peeler, use boiling water to peel. For this method the tomatoes are placed in boiling water to make peeling easy. First cut a cross into the center of the tomato, then place it into boiling water and the peel will pull away from the cut edges. Next remove the tomato from the boiling water into ice cold water and then use your hands to pull off the further loosened peel entirely.