Watermelon and stem ginger juice

A very, very refreshing alternative to traditional lemonade.

Ingredients

¼ watermelon, rind and seeds removed
Zest and juice of 2 limes
2 pieces stem ginger
Stem ginger syrup, to taste
Vodka (optional)
Ice cubes
Fresh mint, to finish
4 ice-cold glasses

Blend the watermelon, limes and ginger to a liquid, then press through a sieve. Add the syrup from the stem ginger jar to taste (I have a sweet tooth, so used almost all of it). Divide the juice between the glasses, add a splash of vodka, if using, and finish with ice cubes and mint.