Ingredients
4 cups cubed seeded watermelon
125 ml water
125 ml white sugar (or to taste)
4 slices lime
24 fresh mint leaves
2 liters ice, or as needed
Directions
Step 1
In a blender, purée the watermelon and water until smooth. Add sugar to taste.
Step 2
Halve the lime slices and place one in each of 8 glasses along with 3 mint leaves. Crush with a cocktail muddler, then fill each glass with 250 ml ice.
Step 3
Pour the watermelon cooler into the glasses and stir before serving.