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Watermelon and lime mocktail recipe

Watermelon and lime mocktail recipe

41 ratings

Nothing is more refreshing than the flavours of sweet watermelon and sharp lime on a hot summer’s day. Put your feet up and relax in the shade with this cooling mocktail recipe. See method

  • Serves 4
  • 15 mins to prepare, plus freezing
  • 50 calories / serving
  • Healthy
  • Vegetarian
  • Gluten-free
  • Dairy-free


  • 1 watermelon
  • 2 limes
  • 1 tbsp white sugar or runny honey 
  • 500ml (17fl oz) chilled soda water
  • 10 mint leaves, plus a few mint sprigs for garnish
  • about 10-15 ice cubes to serve, plus extra (optional) 
If you don't have any limes, try a lemon instead

Each serving contains

  • Energy

  • Fat

    0g 1%
  • Saturates

    0g 1%
  • Sugars

    12g 13%
  • Salt

    0.1g 1%

of the reference intake
Carbohydrate 11.6g Protein 0.6g Fibre 0g


  1. Halve the watermelon and cut the flesh into chunks, discarding any seeds and the rind – you'll need about 450g (15 1/2oz) flesh in total. Transfer to the freezer, in a suitable container, and leave for an hour to get really cold.
  2. Slice 2 thin round slices from each of the limes and set aside for garnish, then squeeze the juice from the remaining limes into a blender.
  3. After an hour, remove the watermelon from the freezer and add to a blender, along with the sugar or honey, chilled soda water and the mint leaves.
  4. Blend until smooth, adding a splash more soda water if you prefer a thinner consistency, then stir and pour into a jug filled with the ice cubes.
  5. Garnish with the reserved lime slices and the mint sprigs. Serve in tall glasses, filled with more ice, if you like.
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