Coconut Lime Watermelon Slushie

The first time I made these slushies was during a heatwave when my AC died and my friend Sarah showed up with a massive watermelon from her farmers market run. We stood in my sweltering kitchen, improvising with what we had, and accidentally created something that made us forget we were melting. Now whenever temperatures climb past ninety, this is the only thing that sounds good.

Last July I made these for my book club, and honestly, nobody talked about the book for twenty minutes because everyone was too busy making involuntary happy noises. One friend asked if I'd hired a bartender, which might be the best compliment I've ever received on a drink that took me literally five minutes to throw together.

Ingredients

• Frozen watermelon: Freezing the fruit yourself gives you control over ripeness, and it's what makes that restaurant style slushy texture happen naturally
• Coconut milk: Full fat makes it creamy and indulgent while light version keeps it refreshing, so choose based on your mood
• Fresh lime juice: Bottled juice never captures that bright tropical kick that makes this drink sing, so please squeeze your own
• Agave or honey: Even perfectly ripe watermelon sometimes needs a little help, and this dissolves better than sugar in cold drinks

Instructions

Load your blender:

Toss in those frozen watermelon cubes along with your coconut milk, lime juice, and sweetener if you're using it

Blend until smooth:

Let your blender run on high speed, stopping occasionally to scrape down the sides and ensure everything gets incorporated

Taste and adjust:

Give it a quick taste test and add more sweetener if your watermelon wasn't quite as ripe as you hoped

Serve immediately:

Pour into your coldest glasses, pop in a lime slice or mint sprig if you're feeling fancy, and enjoy

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These became my go to summer rescue drink after the day my toddler threw a tantrum in the grocery store checkout line and I came home needing something frosty and fast. Something about the combination of cold and sweet and just a little bit tart hits the reset button on a terrible afternoon.

Freezing Your Watermelon

I've learned to buy an extra watermelon whenever they're in season and just cube and freeze the surplus. Spread the pieces on a baking sheet first so they freeze individually, then transfer to a bag, otherwise you'll end up with one solid watermelon brick that's impossible to measure.

Coconut Milk Choices

After testing every brand at my local store, I've settled on full fat coconut milk from a can when I want something dessert like, and the carton variety in the refrigerated section when I need something lighter. Just know that the canned version will give you that creamy restaurant quality texture.

Adult Variation

The rum version of this has officially replaced my mojito habit for summer gatherings. Add 1 to 2 ounces of white rum or coconut rum per serving after blending and give it just a quick pulse to incorporate.

• A splash of coconut rum instead of white rum makes it feel even more tropical
• Lime wedges on the glass rim aren't just pretty, they add aroma that enhances every sip
• These disappear fast, so consider doubling the batch if you're hosting more than two people

Save

Here's to finding the perfect antidote to hot weather and busy days, preferably enjoyed somewhere with a breeze and absolutely nowhere you need to be.

Recipe FAQs

→ Can I make this ahead of time?

Best enjoyed immediately while maintaining the slushy texture. If storing, pour into freezer-safe containers and freeze for up to 2 hours. Blend briefly before serving to restore consistency.

→ What if I don't have frozen watermelon?

Fresh watermelon works too—simply add 1-2 cups of ice cubes to achieve the slushy texture. Reduce the coconut milk slightly to prevent thinning.

→ Can I use coconut water instead?

Absolutely. Coconut water creates a lighter, more hydrating version. The texture will be less creamy but equally refreshing and lower in calories.

→ Is this suitable for kids?

Yes, this version is completely family-friendly. For adults, you can add white rum or coconut rum as suggested in the notes.

→ How do I make it sweeter?

Start with 2 tablespoons agave or honey, then taste. Add more sweetener 1 tablespoon at a time until it reaches your desired sweetness level.

→ Can I use other sweeteners?

Maple syrup, simple syrup, or even pitted dates work well. Adjust quantities based on the sweetener's intensity.