Method
Prepare the watermelon bar
Cut 700 g of seedless watermelon into rough 2 cm cubes, removing the rind and any hard seeds. Reserve four neat cubes for each serving glass, then add the remaining watermelon to a blender.
Build the clear citrus base
Whisk 36 g of granulated sugar, 80 ml of warm water, and 0.75 g of fine sea salt in a large pitcher for about 1 minute, until the liquid looks clear and no crystals remain on the bottom.
01:00Blend the watermelon and citrus
Add 90 ml of fresh lemon juice and 45 ml of fresh lime juice to the blender. Blend for 20 seconds, check for large pieces, then continue for up to 10 seconds if needed. Stop as soon as the mixture is smooth to limit foam, pour it into the pitcher, and stir until evenly combined.
00:20Fill the health bar

Add 240 ml of sparkling water and stir slowly once or twice to preserve the bubbles. If using ice cubes (optional), divide it among the serving glasses, then divide the lemonade. Thread four reserved watermelon cubes onto a short bamboo pick for each glass and rest it across the rim. Serve immediately while the bubbles are lively.
Smart Substitutions
- No sparkling water? Use cold still water for a softer, non-fizzy finish.
- Prefer a gentler lime edge? Replace half the lime juice with the same amount of fresh lemon juice.
- No granulated sugar? Use an equal weight of superfine sugar and whisk until completely dissolved.
- No bamboo picks? Rest the reserved watermelon cubes along the rim or serve them beside each glass.
Tips and Variations
- Measure the watermelon after removing the rind so the fruit-to-citrus balance stays accurate.
- Stop blending as soon as the last large piece disappears; extra blending creates a thick foam cap.
- Add the sparkling water after all other ingredients so the drink keeps a light, lively fizz.
What Went Wrong?
- Lemonade tastes flat Add a small splash of lemon juice first, then lime juice if it still needs a sharper finish.
- Lemonade is too tart Dissolve a little more sugar in warm water and stir it in gradually, tasting between additions.
- Too much foam formed Let the pitcher stand for 2 minutes, then skim the top gently before adding sparkling water.
- Watermelon cubes slide on the pick Choose firm cubes, blot their cut faces lightly, and pierce each piece through the center.
Nutrition Estimate
- Fiber: 1 g per serving
- Sodium: 76 mg per serving
Nutrition disclaimer:This recipe is provided for general cooking information only. Nutrition values are estimates and may vary by ingredients, brands, preparation methods, and serving sizes. Check ingredient labels and follow appropriate food-safety practices. This content is not medical, dietary, allergy, or professional food-safety advice.
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