In a small bowl, whisk eggs and milk. In another bowl, mix flour, sugar and salt; add to egg mixture and mix well. Refrigerate, covered, 1 hour., Melt 1 teaspoon butter in an 8-in. nonstick skillet over medium heat. Stir batter. Fill a 1/4-cup measure halfway with batter; pour into center of pan. Quickly lift and tilt pan to coat bottom evenly. Cook until top appears dry; turn crepe over and cook until bottom is cooked, 15-20 seconds longer. Remove to a wire rack. Repeat with remaining batter, adding butter to skillet as needed. When cool, stack crepes between pieces of waxed paper or paper towels.