1 1/2 oz lemon rum
1 cup cubed seedless watermelon
3 1/2 oz limoncello
Splash of club soda
Lemon wedge for garnish
Purée the watermelon cubes in a blender. Fill a tall glass with ice and add the watermelon juice, limoncello and rum. Stir to blend and top with club soda. Garnish with the lemon wedge and enjoy!