Watermelon Lemonade Mocktail

Ingredients
  • 1 large or 2 small watermelons
  • 250ml lemon juice (from a bottle or squeeze your own)
  • 100g golden caster sugar
  • 1l bottle soda water
  • 1 lime , cut into slices
  • small handful mint
  • crushed ice
Method
  • STEP 1Cut the top off the watermelon and hollow it out using a large spoon, fishing out any pips along the way. Mash the flesh through a sieve into a bowl. Put the flesh in a blender (or use a tall jug and hand blender) with the lemon juice and sugar, whizz to a purée, then stir in the soda.
  • STEP 2Heap some ice into the hollowed-out watermelon and fill it with the lemonade mixture. Serve the rest in a jug with the lime slices and mint. Have a bowl of extra crushed ice on the side so people can help themselves.