Pour some sugar onto a plate. Rub a lemon wedge along the rim of the glasses. Turn glass over and place onto the sugar so that you get a rim of sugar along the glasses.
Fill the glass with ice cubes. Pour in 2 ounces of Limoncello into each glass. Top with sparkling water and stir. Garnish with lemon wedge.
Notes
You can serve Limoncello Spritz in a champagne flute or low ball cocktail glass.
Add different flavored sparkling waters to change up the flavor of the spritz.
Make this drink extra festive by garnishing with a sprig of mint.