Ingredients:

¼ cup water

¼ cup sugar

1 ¼ cups tequila (a good quality silver is best)

Juice of 2 limes

Generous handful blueberries

1 lb seedless, diced watermelon

½ cup fresh mint leaves

Ice

Directions:

Bring the water and sugar to a simmer in a small pan, until the sugar is dissolved. Let cool. Puree the watermelon in a blender until smooth. Strain into a bowl and throw out the pulp. Combine the sugar syrup with the lime juice, blueberries and mint leaves; lightly crush the latter two with a spoon. Add the watermelon juice and tequila and refrigerate. Serve in tall glasses over ice, with a sprig of mint to decorate.