I made this drink on a random Tuesday afternoon out of sheer boredom, and now it’s the only thing I want to drink from June through August.
It started with half a watermelon sitting in my fridge that I didn’t know what to do with. A few mint leaves, some lime, a splash of soda water later, and I had something that tasted like summer decided to become a beverage.
No alcohol needed here. This one’s all about the fruit doing the heavy lifting, which honestly makes it even better because you can hand it to literally anyone at your next backyard hangout. 🍉
Cold glass, hot day, five minutes of your time. Let’s get into it.
What You’ll Need
- 3 cups cubed seedless watermelon
- ¼ cup fresh mint leaves, plus extra for garnish
- 2 tbsp fresh lime juice (about 1 lime)
- 1 tbsp simple syrup (adjust to taste)
- 1 cup club soda or sparkling water
- Ice
- Watermelon wedges and mint sprigs, for garnish
Tools You’ll Need
- Blender
- Fine mesh strainer
- Muddler (or the back of a spoon)
- Tall glasses
- Sharp knife and cutting board
- Citrus juicer (optional)
How to Make It
- Blend the watermelon. Add the cubed watermelon to a blender and blend until completely smooth, about 30 seconds.
- Strain it. Pour the blended watermelon through a fine mesh strainer into a pitcher or large bowl, pressing with a spoon to get all the juice out. This step keeps the drink smooth instead of pulpy.
- Muddle the mint. In your serving glass, add the fresh mint leaves and gently muddle them with the lime juice and simple syrup. You just want to bruise the leaves a little to release the oils, not pulverize them.
- Fill with ice. Add plenty of ice to the glass.
- Pour in the watermelon juice. Fill the glass about three quarters full.
- Top with soda water. Add the club soda last, right before serving, so it stays fizzy.
- Give it a gentle stir. Just enough to combine without knocking all the bubbles out.
- Garnish and serve. Add a watermelon wedge and a fresh mint sprig on top.
Pro Tips
Strain, don’t skip it. I tried skipping this step once and ended up with watermelon pulp stuck in my straw the entire time. Two extra minutes of straining is worth it.
Chill your watermelon first. Cold watermelon means you need less ice, which means your drink stays more flavorful instead of getting watered down.
Add the soda water last. If you mix it in early or stir too hard, you lose all that fizz. Pour it in right before you hand the glass over.
Taste your watermelon before adding syrup. Watermelons vary a ton in sweetness. A really ripe one might not need any simple syrup at all.
Muddle gently. Mint turns bitter if you crush it too hard. A few light presses is all you need.
Substitutions and Variations
- No simple syrup? Use a teaspoon of honey or agave instead.
- Want it boozy? Add 1.5 oz of white rum or vodka for an adult version.
- Different herb: Basil works surprisingly well in place of mint for a slightly peppery twist.
- No club soda: Ginger ale adds a nice spicy sweetness if that’s what you have on hand.
- Extra tart: Add a splash more lime juice or a few muddled raspberries.
- Frozen version: Blend the watermelon juice with ice instead of pouring it over cubes for a slushy texture.
Make Ahead Tips
You can blend and strain the watermelon juice up to 2 days ahead. Store it in an airtight container in the fridge.
Just don’t add the mint, lime, or soda water until you’re ready to serve, otherwise the drink loses its fizz and the mint can turn the juice a little murky looking.
This makes it perfect for parties, since you can prep the base the day before and just assemble glasses as guests arrive.
Nutrition and Pairing Notes
| Per Serving | |
|---|---|
| Calories | ~70 |
| Sugar | 14g |
| Vitamin C | 15% DV |
| Carbs | 18g |
Diet swaps:
- For a lower sugar version, skip the simple syrup entirely and rely on the natural sweetness of a ripe watermelon.
- This drink is naturally vegan and gluten free as written.
What to serve it with:
This mocktail pairs really well with grilled shrimp skewers, a light Caprese salad, or really anything off the grill on a hot day. It also just works standing alone as a poolside sipper.
Time efficiency tip:
Cube and freeze watermelon in advance so it doubles as your ice, keeping the drink cold without diluting the flavor.
Leftovers and Storage
- Watermelon juice base: Store in the fridge for up to 2 days in a sealed container.
- Assembled drinks: Best enjoyed fresh, since the soda water loses its fizz within an hour or two.
- Freezing: Freeze extra watermelon juice in ice cube trays to use in future drinks without watering them down.
FAQ
Can I make this ahead for a party? Yes, prep the watermelon juice base up to 2 days early and assemble individual glasses right before serving.
Do I need to strain the watermelon juice? It’s not required, but it makes a noticeably smoother drink. Skip it if you don’t mind a little pulp.
Can I use frozen watermelon? You can, it’ll just make the drink colder and slightly thicker, almost like a slushie.
What’s the best watermelon for this recipe? Look for one that feels heavy for its size with a deep yellow spot on the bottom (called the field spot). That usually means it’s extra ripe and sweet.
Can I turn this into a big batch punch for a party? Definitely. Multiply the watermelon juice, lime, and syrup by however many servings you need, then add the mint and soda water fresh to each glass or a punch bowl right before serving.
Wrapping Up
There’s a reason this drink disappears fast at every summer gathering I’ve brought it to.
It’s simple, it’s genuinely refreshing, and it makes people ask what’s in it. Which is always a fun moment.
Give it a try next time you’ve got extra watermelon sitting around, and let me know in the comments how yours turned out. If you tried any of the variations above, I’d love to hear which one was your favorite.
