Mix the Grey Goose vodka, triple sec, sugar and lemon juice in a cocktail shaker half filled with ice cubes. Shake well to make sure sugar is blended. Pour strained liquor into a sugar-rimmed martini glass and garnish with a twisted peel of lemon. 

NOTE: To create a sugar-rimmed glass, take a lemon wedge and rub the drinking surface of the glass so it is barely moist. Dip the edge of the glass into sugar.