Frozen Watermelon Lemonade Slushie (2024)

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Cool off easily with my refreshing two-ingredient Frozen Watermelon Lemonade Slushie! Made with all-natural ingredients it is SO simple and is make ahead, too!

How To Make This Video

Why We Love This Drink Recipe

My family loves watermelon. Like, really LOVES it! But being a family of four and if we get a really big one, sometimes we can’t eat it fast enough before it starts to get mushy.

Plus we like to eat a variety of fruit so it is just part of the rotation. So years ago, I came up with the idea to mix it with lemonade and this Watermelon Lemonade recipe was born!

Another great thing about freezing watermelon puree ahead of time is that we can enjoy that taste of summer all year round!

What I really wanted to do was figure out a way to freeze the watermelon and pureeing it was the way to go. I freeze the purred watermelon, which is kind of like watermelon juice but I don’t strain it so it’s got that fiber left in it. You can strain it if you want to but we like it just fine as a puree.

I’m not sure what made me think to combine watermelon and lemonade but it was an instant hit with my family! By blending up the frozen watermelon puree cubes and some prepared lemonade in a blender (affiliate link), it’s so super simple to make these up in a jiffy!

And because I start with frozen fruit cubes, combined with the lemonade, they naturally create the slushie with no extra ice which could water it down.

What Ingredients Are Needed To Make This Drink?

This Watermelon Lemonade Recipe really is just two ingredients—watermelon and lemonade! You can use store-bought, prepared lemonade but we prefer to make our own lemonade using my recipe for Homemade Lemonade Concentrate.

When I’m buying lemonade, I usually choose the lemonade that is in the refrigerator section of the grocery store instead of the frozen concentrate though as the refrigerated variety tends to have less sugar or high fructose corn syrup.

You don’t need much sugar in your lemonade as the watermelon is naturally sweet and by making our own lemonade concentrate, I can control the amount of sugar that is added.

How to Prepare This Beverage

First, you will need to prepare and freeze the watermelon puree.

Start by cutting the watermelon into cubes and removing the seeds if there are any, and rind.

Then add the cubes to the jar of a blender (1) and blend for a minute or so until there are no chunks remaining.

From there, pour the watermelon puree into an ice cube tray (2) or I also like to use my SouperCube trays (affiliate link) (3).

Once the puree is frozen, you can make up the watermelon lemonade slushie! To make a serving, add the frozen watermelon cubes and the prepared lemonade to the blender jar (affiliate link). Then blend it up for about a minute until combined.

You don’t want to over blend it otherwise the iciness of the frozen cubes will start to “melt” and it won’t be so thick. That’s totally ok but it will just be a different texture.

Make Ahead Preparation Tips

As I’ve said, this recipe is naturally make ahead as it’s making the most of leftover watermelon. If you want just a regular watermelon lemonade and not a slushie version, you can puree the watermelon and store it in the refrigerator for up to two days. Just pour equal parts of watermelon juice and lemonade to make up your drink.

Is this drink freezer friendly?

So, I’ve already covered that you know because one of the ingredients is frozen watermelon puree, but if you want to take this a step further, you can!

Before freezing the watermelon puree, combine it with an equal amount of lemonade. Then pour the mixture into your ice cube trays. The Souper Cube trays (affiliate link) would be perfect for this as they come in 1-cup and 2-cup sizes.

No matter what you use to freeze your mixture, once it’s frozen it is good to go on making the slushie. Simply pop out the cubes/block and add it to the blender. Depending on how powerful your blender is, you may need to let it thaw just slightly so that it is easier on your blender.

Once you’re ready, just blend up the combined mixture for a minute or two then pour into a glass to enjoy!

Other Refreshing Cool Drinks

If you like this recipe, be sure to check out some of my other cool beverage recipes like these:

Iced Chai Latte

Homemade Lemonade Concentrate

Simple Cranberry Orange Sangria

Sparkling Citrus Pomegranate Punch

Cranberry Citrus Tea

This post was originally published in June 2012 but updated in July 2017 with new photos and again in August 2020 with new video and content.

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