1 oz of limoncello lemon liqueur (or lemon liqueur)
lemon
ice cubes (or ice)
4 oz of izze blackberry sparkling soda (or clear soda)
Fill collins glass with ice cubes. Add limoncello, and top with blackberry soda. Squeeze lemon wedge into drink, and drop lemon wedge into the glass. Stir briefly and serve. Serves one.