Easy Watermelon Slushie Recipe

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There's nothing like a refreshing, cold drink on a hot summer day, and this easy watermelon slushie recipe is the perfect solution!

Made with fresh watermelon and a few simple ingredients, it’s a great way to cool down on a hot day and enjoy a tasty treat. Plus, it’s super quick and easy to make, so you can whip it up in no time.

Whether you're lounging by the pool or need a thirst-quenching beverage after some outdoor fun, this watermelon slushie is the perfect drink.

Table of Contents

Why You’ll Love This Recipe

Quick and Easy to Make - With just a few simple ingredients and a blender, you can whip up this refreshing watermelon slushie recipe in minutes. It's perfect for when you need a cool drink fast on a hot summer day.
Natural Sweetness- Made with fresh watermelon and sweetened naturally with honey, this slushie is a healthy alternative to sugary drinks. It’s packed with vitamin C and other nutrients. Enjoy it on hot sunny days. It’s the perfect time to enjoy a healthy, thirst-quenching beverage that’s both fun and tasty!
Customizable and Versatile - This recipe is incredibly versatile. You can easily adjust the sweetness, add your favorite fruits, or even turn it into a cocktail with a splash of alcohol. Whether you stick to the classic recipe or put your own spin on it, you’ll have a delicious and refreshing drink every time.

Since this recipe only requires 4 cups of cubed watermelon, you can make a fun snack like watermelon fries with the rest of the watermelon. Another great recipe to use up the fresh watermelon is my Watermelon Salad with Goat Cheese. If you aren't a fan of goat cheese, swap it out to make a watermelon feta salad.

And if you're looking for other fruity drinks to enjoy during the summer, try my Strawberry Mocktail or my Brazilian Limeade.

Not sure how to pick a ripe melon? Check out my complete guide to selecting the perfect watermelon for this recipe.

Up close view of the watermelon slushie showing the icy texture.

Substitutions

Honey - If you're looking for a vegan option, you can use maple syrup or agave nectar instead of honey. For those on a keto diet, try using keto sweeteners like stevia or erythritol.
Ice Cubes - If you don’t have ice cubes, you can use frozen watermelon cubes. Just freeze the cubed watermelon on a baking sheet in a single layer, then transfer them to an airtight container.
Mint Leaves - If you’re not a fan of mint, fresh basil leaves can be a great substitute, giving your slushie a unique twist.

Variations

Strawberry Watermelon Slushie - Add a handful of strawberries to the blender for a delicious strawberry watermelon slushie.
Coconut Water - Replace the ice cubes with frozen cubes of coconut water for a tropical twist.
Citrus Kick - Add a splash of fresh lime juice or lemon juice to brighten up the flavor.
Cocktail Version - For a fun summer drink, add a splash of tequila or vodka.

Ingredients

*For specific ingredient amounts, please scroll down to the printable recipe card.

How To Make This Watermelon Drink

Step 1. Prep the Watermelon. Start by cutting your ripe watermelon into chunks. Make sure to remove any seeds. Place the watermelon cubes in a large blender. and blend until smooth.

Step 2. Add the Ice and Honey. Add the ice cubes and honey to the blender. Blend until everything is well combined and you have a nice, slushy consistency.

Step 3. Taste and Adjust. Taste the mixture and adjust the sweetness if needed by adding more honey. Blend again briefly if you add more.

Step 4. Serve. Pour the watermelon slushie into glasses and garnish with fresh mint leaves. Serve immediately and enjoy your beautiful watermelon slushie!

A glass filled with watermelon slushie with a decorated rim, a straw and granished with a sprig of mint.

Storage and Freezing

Although watermelon slushies are best right after blending, if you have leftovers, you can pour the slushie into ice cube trays and freeze them. When you’re ready to enjoy it again, just blend the frozen cubes to restore the slushy consistency.

Pro Tip

For the best texture, make sure to use a high-powered blender or food processor. This will ensure that the ice and watermelon chunks blend smoothly, and you get that perfect slushy consistency.

Notes and FAQs

Can I make this watermelon slushie ahead of time?

It’s best to enjoy this slushie immediately after blending to keep its perfect slushy texture. However, you can prep the watermelon chunks and freeze them in advance. Just blend them with ice and honey when you’re ready to serve.

What if my watermelon isn’t very sweet?

If your watermelon isn’t sweet enough, you can adjust the sweetness by adding a little more honey, maple syrup, or even a bit of fresh squeezed lime juice to enhance the flavor. For tips on how to pick the perfect watermelon, see the blog post for a link to my complete guide.

Can I use other fruits in this slushie?

Absolutely! This recipe is very versatile. You can add other fruits like pineapple, mango, or berries for different flavor combinations.

Do I need to remove the seeds from the watermelon?

Yes, it’s best to use seedless watermelon or remove the seeds before blending to ensure a smooth texture.