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This Watermelon Mint Lemonade combines fresh watermelon, lemon juice, and mint for a bright, refreshing summer drink. The watermelon provides plenty of natural sweetness, while fresh lemon adds tartness and mint gives the lemonade a cool herbal finish.
An optional mint simple syrup lets you adjust the sweetness after blending, which is especially useful because watermelons can vary considerably in flavor and sugar content. Serve the lemonade over ice, or freeze some of the finished drink into cubes to keep later glasses cold without watering them down.
Why You’ll Love This Watermelon Mint Lemonade
It’s made with fresh watermelon. Six cups of watermelon create the fruity base.
Fresh lemon balances the sweetness. The citrus keeps the drink bright and refreshing.
You control the sweetness. The mint simple syrup is optional and can be added gradually after tasting.
Fresh mint is used two ways. It flavors the optional syrup and infuses the finished lemonade.
It’s easy to prepare ahead. The lemonade can be chilled before serving, then poured over ice when needed.
Watermelon lemonade ice cubes prevent dilution. They’re especially useful for outdoor summer gatherings.
Ingredients
For the Optional Mint Simple Syrup
- ½ cup granulated sugar
- ½ cup water
- ¼ cup fresh mint leaves, stems removed and lightly crushed
The simple syrup is optional. Since the sweetness of fresh watermelon varies, it’s better to taste the blended lemonade before deciding how much syrup to add.
For the Watermelon Lemonade
- 6 cups fresh watermelon, cut into chunks
- ¾ cup fresh lemon juice, approximately 6 to 8 medium lemons
- ½ cup cold water, plus more if needed
- ½ cup fresh mint leaves, stems removed and lightly bruised
Freshly squeezed lemon juice provides the bright citrus flavor that balances the watermelon.
Start with the listed ½ cup of water. Additional water can be added if you prefer a lighter lemonade.
For Serving
- Ice
- Fresh mint sprigs
- Lemon slices
You can also replace ordinary ice with frozen cubes made from some of the watermelon lemonade.
Equipment
- Blender
- Small saucepan
- Fine-mesh strainer
- Large pitcher or jar
- Heat-safe container for the syrup
- Glasses for serving
How to Make Watermelon Mint Lemonade
Step 1: Make the Optional Mint Simple Syrup
Combine the granulated sugar, water, and crushed mint leaves in a small saucepan.
Place over medium heat and stir until the sugar has completely dissolved, approximately 2 to 3 minutes.
Reduce the heat to low and gently simmer to infuse the syrup with mint, watching carefully so the mixture doesn’t reduce too far.
Remove the saucepan from the heat.
Strain out the mint leaves and set the syrup aside to cool completely.
Step 2: Blend the Watermelon and Lemon
Add the watermelon chunks, fresh lemon juice, and ½ cup cold water to a blender.
Blend until completely smooth.
Depending on the size of your blender, you may need to work in batches.
Step 3: Strain the Lemonade
Pour the blended watermelon mixture through a fine-mesh strainer into a large pitcher or container.
This removes excess pulp and any larger particles, giving the lemonade a smoother consistency.
Allow the liquid to pass through the strainer without aggressively forcing large amounts of pulp through.
Step 4: Adjust the Sweetness
Taste the strained watermelon lemonade.
If the watermelon is already particularly sweet, you may decide that no additional sweetener is necessary.
If you’d like a sweeter drink, gradually stir in some of the cooled mint simple syrup.
Taste between additions rather than adding the entire batch automatically.
Step 5: Add the Fresh Mint
Lightly bruise the remaining fresh mint leaves with your fingers.
You want to release their aroma without crushing them into tiny pieces.
Add the mint to the pitcher and pour in the watermelon lemonade if it isn’t already in the serving pitcher.
Stir gently.
For a stronger mint flavor, allow the lemonade to chill with the mint before serving. Taste periodically if you’re infusing it for an extended period, since herbs can become more prominent over time.
Step 6: Serve
Fill individual glasses with ice or frozen watermelon lemonade cubes.
Pour the chilled lemonade over the ice.
Garnish with fresh mint sprigs and lemon slices.
Serve cold.
Tips for the Best Watermelon Mint Lemonade
- Choose flavorful watermelon. Since watermelon forms the majority of the drink, its flavor makes a noticeable difference.
- Use fresh lemon juice. Fresh citrus provides the acidity needed to balance sweet watermelon.
- Sweeten after blending. This prevents an already-sweet watermelon from producing an unnecessarily sugary drink.
- Cool the simple syrup before using it. Adding hot syrup will warm the lemonade.
- Bruise rather than finely chop the mint. This releases its aroma while making the leaves easier to manage in the pitcher.
- Start with ½ cup water. Add more only if you want a lighter drink.
- Strain for a smoother lemonade. Watermelon can create considerable pulp when blended.
- Add ice to individual glasses. Keeping ice out of the main pitcher prevents the entire batch from becoming diluted.
- Make lemonade ice cubes. This is particularly helpful when serving the drink outdoors.
Common Mistakes to Avoid
Adding All the Simple Syrup Without Tasting
Watermelon sweetness varies. The syrup is best treated as an adjustable ingredient rather than something that automatically needs to be added in full.
Taste first, then sweeten gradually.
Adding Hot Simple Syrup to the Lemonade
Allow the syrup to cool before adding it to the fruit mixture.
Overworking the Mint
Lightly bruising the leaves is enough to release their aromatic oils.. There’s no need to pulverize them.
Adding Too Much Water at the Beginning
You can always dilute an overly concentrated lemonade, but you can’t easily reverse excessive dilution.
Begin with the listed amount and adjust after tasting.
Leaving Ice in the Pitcher
Ice gradually melts and changes the balance between watermelon, lemon, and sweetness.
Add ice to individual glasses instead, particularly if the pitcher will be sitting out during a gathering.
Expert Tips
The balance of this drink depends heavily on the watermelon. A particularly ripe watermelon may need little or no simple syrup, while a less-sweet fruit may benefit from additional sweetness.
That’s why the best time to adjust the lemonade is after the watermelon, lemon juice, and water have been blended and strained.
The same principle applies to dilution. Start with the listed amount of cold water, taste, and then add more if the watermelon and lemon mixture seems too concentrated.
For serving outdoors, freeze some of the prepared watermelon lemonade in an ice cube tray. Add those cubes to individual glasses instead of regular ice. As they melt, they add more lemonade rather than plain water.
Variations
Less-Sweet Watermelon Lemonade
Skip the mint simple syrup entirely if your watermelon provides enough sweetness.
Sweeter Watermelon Mint Lemonade
Add the cooled mint syrup gradually until the drink reaches your preferred sweetness.
Extra-Minty Lemonade
Allow the bruised mint leaves to infuse in the chilled lemonade before serving. Taste as it infuses so the mint doesn’t overwhelm the watermelon and lemon.
Sparkling Watermelon Mint Lemonade
Blend the watermelon and lemon with only the still water needed to help the mixture blend smoothly. After straining and chilling, add chilled sparkling water shortly before serving for a fizzy finish. Stir gently to preserve the carbonation.
Watermelon Lemonade Without Mint
Leave out the fresh mint and optional mint syrup. If additional sweetness is needed, use a plain simple syrup instead.
Adults-Only Variation
For an alcoholic version, citrus vodka or rum can be added to individual servings.
Adding alcohol by the glass rather than to the entire pitcher keeps the main batch suitable for guests who prefer the non-alcoholic lemonade and allows each serving to be adjusted separately.
What to Serve With Watermelon Mint Lemonade
This lemonade works especially well with summer lunches, grilled meals, picnics, and backyard gatherings.
Grilled Spiced Shrimp Kabobs with Zhoug Sauce make a flavorful warm-weather pairing, with smoky shrimp and vegetables contrasting nicely with the cold watermelon drink.
For a lighter meal, Mediterranean Pasta Salad is a practical make-ahead option for picnics and casual summer meals.
You could also pair it with Orange and Tahini Piyaz when you want a fresh salad alongside the lemonade.
Make-Ahead Tips
The mint simple syrup can be prepared ahead. Cool it completely, transfer it to a clean covered container, and refrigerate until needed.
The watermelon lemonade can also be blended and strained before serving. Keep it covered and refrigerated rather than adding ice to the pitcher.
For the freshest presentation, prepare the mint sprigs and lemon-slice garnishes closer to serving time.
If you’re making watermelon lemonade ice cubes, prepare them far enough ahead to freeze completely.
Storage
Transfer leftover Watermelon Mint Lemonade to a covered container and refrigerate promptly.
Because this drink contains freshly blended watermelon and fresh herbs, it is best enjoyed while fresh.
Store the lemonade without ice, since melting ice will dilute it.
If fresh mint has been sitting in the lemonade for an extended period and its flavor becomes stronger than you prefer, strain out the leaves before continuing to refrigerate the drink.
More Drinks to Try
If you’re looking for more refreshing drinks for summer entertaining, try these next.
- Sparkling Blackberry Basil Cocktail combines blackberry-basil syrup with chilled Prosecco for an elegant sparkling option.
- Ginger-Peach Iced Tea combines fresh peaches, black tea, ginger, and honey for another fruit-forward summer drink.
Final Thoughts
Watermelon Mint Lemonade is an easy way to turn fresh summer watermelon into a cold, refreshing drink. Fresh lemon provides tartness, while lightly bruised mint adds an herbal note that complements the fruit without requiring complicated preparation.
The optional mint simple syrup makes the recipe particularly flexible. Instead of assuming every watermelon needs the same amount of added sugar, blend and strain the lemonade first, taste it, and then add only as much syrup as needed.
Serve it thoroughly chilled over ice, or use frozen watermelon lemonade cubes when you want to keep each glass cold without watering down the flavor.
Watermelon Mint Lemonade
Equipment
- Blender
- Small saucepan
- Fine mesh strainer
- Large pitcher or jar
- Glasses for serving
Ingredients
For the Mint Simple Syrup (Optional):
- ½ cup granulated sugar
- ½ cup water
- ¼ cup fresh mint leaves, stems removed and crushed
For the Lemonade:
- 6 cups fresh watermelon, cut into chunks
- ¾ cup fresh lemon juice (6-8 medium lemons)
- ½ cup cold water (adjust as needed)
- ½ cup fresh mint leaves, stems removed and lightly crushed
- Ice, for serving
- Fresh mint sprigs, for garnish
- Lemon slices, for garnish
Instructions
- Prepare the Mint Simple Syrup (Optional)In a small saucepan, combine sugar, water, and crushed mint leaves over medium heat.Stir continuously until the sugar dissolves completely (about 2-3 minutes).Reduce the heat to low and let it simmer for 5 minutes to infuse the mint flavor.Remove from heat, strain to remove mint leaves, and let it cool.
- Blend the LemonadeIn a blender, combine the watermelon chunks, fresh lemon juice, and cold water. Blend until completely smooth.Strain the mixture through a fine mesh sieve to remove any pulp or large particles.Taste the lemonade and, if desired, sweeten with the mint-infused simple syrup to your preference.
- Infuse with Fresh MintLightly bruise the fresh mint leaves with your fingers to release their essential oils.Add the bruised mint leaves to a large pitcher or glass jar and pour in the watermelon lemonade mixture. Stir well to infuse the flavors.
- Serve & GarnishFill glasses with ice cubes (or frozen watermelon lemonade cubes).Pour the lemonade over the ice and garnish each glass with a fresh mint sprig and a slice of lemon.Serve immediately and enjoy this refreshing summer drink!
