watermelon cosmopolitan how to make the perfect cocktail equipment large martini glass cocktail shaker blender or juicer large skewer ingredients vodka - good quality 30 mls cointreau - 15 mls fresh lime juice- 5 mls fresh watermelon juice - 80 mls fresh whole blueberries -3-4 Ice method Shake vodka, cointreau, lime and watermelon juice in the cocktail shaker to combine. Strain into the martini glass,skewer the whole blueberries and rest across the rim, then serve immediately. tips To juice the watermelon, cut watermelon into small pieces, skin removed, and juice. If using a blender, finely strain. 1 large watermelon makes aproximately 4-5 litres of fresh juice    Home Back to beverage catering packages Food and Wine Check out Grazing table ideas