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    Watermelon Slushie (Alcohol Free)

    Published on June 13, 2018 ᛫ Updated on March 28, 2025 by Chef Markus

    Homemade watermelon slushies are a great way to cool down on a hot summer day, enjoy fresh watermelon, and at the same time, avoid the chemical and sugar-laden store-bought variety! Freezing leftover watermelon is probably the easiest way to keep a watermelon for long periods once it's cut open, and a watermelon slushie is a quick yet healthy way to enjoy a sweet summer drink.

    Jump to Recipe

    Kids love slushies too! Whether it's their brain-freezing abilities, the surge of sugary fruit flavor, or the bright colors, these sweet icy drinks are a great way to cool off, and always a hit during the hot summer months. Unfortunately, store-bought slushies often contain little fruit and are mostly made up of sugar and chemical flavorings. The best alternative? Homemade slushies!

    a glass of watermelon slushie

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    Table of Contents

    • The Cool Story Behind the Slushie!
    • Do I Have To Use Frozen Watermelon?
      • How to freeze watermelon.
    • Make Your Own Healthy Fruit Slushies This Summer

    The Cool Story Behind the Slushie!

    Did you know the slushie was actually invented by accident? Back in the 1950s, a Dairy Queen owner named Omar Knedlik had a broken soda machine, so he put his sodas in the freezer. When he served them, they came out icy and slushy—people loved it! He then created a special machine to make these frozen drinks on purpose, calling it the "ICEE." A few years later, 7-Eleven rebranded it as the "Slurpee," and the rest is history. Now, we can all enjoy these frosty treats on a hot day!

    Do I Have To Use Frozen Watermelon?

    No. You don't really have to use frozen watermelon, and honestly, fresh watermelon will probably be easier to blend up for most lower end kitchen blenders. This is good news if you have a fresh watermelon you're about to cut into. On the other hand, using frozen watermelon creates a creamier slushie, and also provides a use for frozen watermelon. I used a Nutri Ninja Bullet blender to make my watermelon slushie, and my only complaint is that it only makes two drinks at a time!

    Freezing watermelon is a great way to keep a cut melon from going bad, if you can't eat it all in one sitting, or simply have to much of it! Since frozen watermelon doesn't really thaw out well, (it goes mushy and gross as the water melts out), it's best to use frozen watermelon in smoothies and drinks such as this one.

    How to freeze watermelon.

    Freezing watermelon is super easy and only takes a few steps.

    1. Cut the melon in half with a large chefs knife, and then again into quarters.
    2. Remove the red flesh from the rind by running the knife along the white pith.
    3. Dice up the ripe watermelon, and spread it out on a parchment lined tray.
    4. Place the diced watermelon in the freezer to freeze, about 20 minutes.
    diced watermelon on a tray in the freezer
    Related:  Creamy Strawberry Watermelon Smoothie

    Make Your Own Healthy Fruit Slushies This Summer

    You can easily enjoy healthy fruit slushies all summer long. The trick is to make them yourself of course!

    Luckily almost all slushies, including this watermelon slushie, are easily made in under five minutes with only two or three ingredients. The type of fruit used is really up to you, but watermelon is perfect for slushies since frozen watermelon doesn't thaw well, and it is naturally sweet. This means less added sugar, if any!

    You'll need:

    • 2 cups fresh or frozen watermelon
    • ½ cup crushed ice
    • ½ cold water
    • 1 tablespoon brown sugar
    • 1 lemon wedge

    Mix all the ingredients together in a blender and presto! You made a slushie! Serve immediately or drink it yourself!

    Adults can add a splash of rum, tequila, or vodka to the blender for a little extra kick! - Chef Markus

    The sugar and lemon are, of course, optional in the recipe above, but the lemon adds just a little bit of tartness that makes the slushie really pop with flavor. If the watermelon you have is naturally very sweet, you can consider leaving out the sugar, but it's summer, and a little bit of sweetness never hurts anybody!

    If you are having trouble blending the slushie, and it seems to thick or icy, add some water to thin it out and let the blender do its job. There should be no large chunks and the blender should be able to smoothly blend all of the watermelon and ice chunks.

    a healthy homemade watermelon slushie in a glass

    Serve these slushies on a hot summer day, at a BBQ, or when you(or your kids), are craving something sweet.

    Made the recipe? Comment & Rate it below, then take a picture and tag me on Facebook. For more from scratch recipes, follow me on Facebook & Pinterest.

    Recipe

    Watermelon Slushie

    Chef Markus
    Cool down this summer with an icy watermelon slushie. Made in less then five minutes with only four ingredients!
    5 from 6 votes
    Print Recipe Pin Recipe Save Recipe Saved!
    Prep Time 5 minutes mins
    Total Time 5 minutes mins
    Course Drinks
    Cuisine American
    Servings 2 slushies
    Calories 129.6 kcal
    Prevent your screen from going dark

    Ingredients
      

    • 2 cups fresh or frozen watermelon
    • ½ cup crushed ice
    • ½ cup cold water
    • 1 tablespoon brown sugar
    • 1 lemon wedge

    Instructions
     

    • Mix all the ingredients together in a blender and presto! You made a slushie! 

    Notes

    If the slushie is very thick, and icy, and the blender is having a hard time blending, add a splash of water to help it out. The blender should be able to blend all of the slushie with no large chunks remaining.

    Nutrition

    Calories: 129.6kcal

    Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.

    Keyword frozen watermelon recipes, homemade slushie, summer drinks, watermelon drinks
    Tried this recipe?Let us know how it was!

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    Reader Interactions

    Comments

    1. Marlynn | UrbanBlissLife

      June 15, 2018 at 7:52 pm

      I have been seeing so many watermelon drinks lately! They all look so good! I can't wait to try this!

      Reply
      • Markus Mueller

        June 16, 2018 at 11:52 am

        They do don't they! I love eating as much watermelon as I can when it's on sale!

        Reply
    2. Jessica Formicola

      June 15, 2018 at 3:22 pm

      5 stars
      This is the perfect, refreshing summer drink!

      Reply
    3. Kate

      June 15, 2018 at 2:31 pm

      What a refreshing way to have watermelon. And such a great use of frozen.

      Reply
    4. Natanja || Home Baked Bliss

      June 15, 2018 at 12:58 pm

      5 stars
      This looks so refreshing! I wish I could be sitting outside in my garden with this in my hand right now. Definitely something I have to try this summer!

      Reply
      • Markus Mueller

        June 16, 2018 at 11:53 am

        Now that the weather is warming up here in PEI that's exactly what I have planned!

        Reply
    5. Beth

      June 15, 2018 at 12:13 pm

      5 stars
      This looks so good! What a great idea! I didn't think about freezing leftover watermelon! I will have to try that!

      Reply
      • Markus Mueller

        June 15, 2018 at 12:17 pm

        I always wasted so much watermelon because I could never eat a whole one by myself, freezing it and making plushies and smoothies solved that!

        Reply
    6. Catherine

      June 15, 2018 at 12:01 pm

      I love this refreshing and delicious summer drink! So perfect that it's alcohol free too so everyone can enjoy. Cheers!

      Reply
      • Markus Mueller

        June 15, 2018 at 12:16 pm

        It is! A great family oriented drink! You can always add some booze for the adults afterwards 😉

        Reply
    7. Sues

      June 15, 2018 at 11:49 am

      5 stars
      I'm all about slushies!! Especially when they are totally fresh and delicious and don't involve a ton of added sugar. Oh, and extra especially when they are a gorgeous color like this!!

      Reply
      • Markus Mueller

        June 15, 2018 at 12:16 pm

        I know! I was surprised at how red the watermelon stayed after freezing! I was expecting a paler color..but it held! And no food coloring!

        Reply
    5 from 6 votes (2 ratings without comment)

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