Blend up a watermelon mint slushie to keep you cool on a hot summer day! Made with fresh watermelon and mint, these slushies are refreshing, cooling, and the perfect summer treat.
Recipe summary
Flavor: Refreshing, fruity, and sweet. Frozen watermelon is blended with fresh mint and lime juice to make these fun summer slushies.
Made with simple ingredients. All you need is fresh watermelon, limes, maple syrup, and mint.
Yield: 16 ounces
Great for: Lounging poolside, hot summer days, picnics.
You may also like: Watermelon Cocktail
More flavors: Lemonade Slushie and Apple Cider Slushie
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Ingredients and substitutions
- Watermelon - Fresh cubed watermelon or frozen watermelon works for this recipe. If you have fresh watermelon on hand, we'll be freezing it in the first step of the recipe.
- Limes - I recommend using fresh limes if possible. The flavor is bright, fresh, and all-around superior. However, fresh lime juice can be substituted with bottled lime juice if needed.
- Fresh mint - Makes these slushies extra refreshing and bright, but it can be omitted if desired.
- Maple syrup - Can be substituted with any sweetener you have on hand, like granulated sugar, brown sugar, or honey. If your watermelon is extra sweet, you may not need to add any sweetener at all.
How to make watermelon slushies
- Spread cubed watermelon on a sheet pan and freeze until solid, about 2 hours.
- Juice limes into a blender and add remaining slushie ingredients.
- Blend until smooth.
- If needed, add more water to achieve your desired consistency.
Tips and tricks
Freezing fresh watermelon - Slice your watermelon into cubes and spread in a single layer on a parchment lined baking sheet. Freeze for up to 2 hours, or until solid.
Storing frozen watermelon - Frozen watermelon can be stored in an airtight freezer-safe container until ready to use. Frozen watermelon will keep for up to a year in the freezer when properly stored.
Frequently asked questions
Slushies are best enjoyed immediately. Slushie mixture can be frozen for up to 2 hours, but will eventually freeze into a solid block due to the high water content.
Yes. I also tested this recipe with a combination of fresh watermelon and ice, but the ice watered down the flavor of the drink and didn't add enough slushie texture. Frozen watermelon is the way to go!
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📖 Recipe
Watermelon Mint Slushie
Ingredients
- 16 ounces seedless watermelon, cubed
- ¼ cup lime juice, the juice of about 2 limes
- 8-10 mint leaves
- 1 tablespoon maple syrup, optional
- ½ cup water
Instructions
- Line a sheet pan with parchment paper. Spread cubed watermelon into a single layer. Freeze for 2 hours, or until solid.
- In a blender, add lime juice, mint, frozen watermelon, sweetener (optional - add to taste. In-season watermelon may be sweet enough on its own), and half of your water. Blend until smooth, adding additional water as needed to achieve your desired slushy consistency.
Equipment Recommendations
Notes
- Yield: about 16 ounces
- Sweetener substitutes: Maple syrup can be substituted with any sweetener you have on hand (granulated sugar, honey, brown sugar) and can be omitted if your watermelon is in-season and very sweet. Out of season watermelon will need the added sweetener.
- Can I freeze leftovers?: Slushies can be frozen for up to 2 hours, but will freeze solid over time due to the high water content.
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