Recipe found in the book Shake: a new perspective on cocktails
2 shots light rum
2 cubes of cane sugar
2 shots of fresh squeezed lime juice
2-4 watermelon wedges with rind removed
1 slice of watermelon for garnish
1 slice of lime for garnish
Muddle the lime juice, watermelon, and sugar in a shaker. Add the rum and fill with ice to the surface of the liquid in the shaker. Shake vigorously for 10 seconds and strain into a glass. Add garnishes.