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    Home » Recipe » Drinks » Watermelon Slushie

    Watermelon Slushie

    Published Jul 27, 2026 · Updated Jul 27, 2026 by Ginnie · Leave a Comment

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    Learn how to make a fresh Watermelon Slushie! This frozen watermelon recipe is super quick and easy to prepare, plus so delicious and refreshing on a hot day. It's the perfect summer drink for kids and adults alike!

    Two Watermelon Slushie Drinks and a napkin on a marble counter.

    This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases.

    Ginnie's Take

    I'm so excited to share this yummy Watermelon Slushie with you today! This colorful fruit slush is a fun (and tasty) way to beat the summer heat, and you only need three ingredients to make it. This recipe is super simple to make, and it's also a great way to use up leftover watermelon. And you definitely won't be able to resist the sweet, juicy flavor!

    Why You'll Love This Drink

    • Delicious + Refreshing - What's better than watermelon on a hot summer day? Watermelon Slush, that's what! This delightful drink tastes just like biting into the sweetest melon.
    • Ready in Minutes - This recipe requires very little effort and just three ingredients. Simply freeze the watermelon, then blend it up with a couple other ingredients, and you'll be sipping a refreshing drink before you know it!
    • Perfect Summer Treat - Watermelon just screams summer, and this drink is one of the best ways to enjoy it. The recipe is non-alcoholic, so it's perfect for kids and adults alike. It makes a great mocktail, but you can easily turn it into a cocktail, too!
    Jump to:
    • Ginnie's Take
    • Why You'll Love This Drink
    • Ingredients
    • How to Make Watermelon Slushies
    • Variations
    • Serving Suggestions
    • Storage
    • Related Recipes
    • Watermelon Slushie
    A overhead image of the frozen drink on a colorful napkin.

    Ingredients

    You need just three ingredients (plus, water) to make this easy frozen watermelon drink:

    • Watermelon - For four drinks, you'll need about one-quarter of a large watermelon, although you can easily size the recipe up or down. When choosing a melon, look for one that's heavy for its size, and give it a thump. A juicy watermelon should have a deep hollow sound.
    • Sugar - Granulated sugar helps bring out the melon's sweet taste.
    • Lemon - A little fresh lemon (or lime juice) brightens all the other flavors.

    This recipe is naturally vegetarian, vegan (as long as you use vegan-friendly sugar), dairy free, nut free, and gluten free, which means that almost anyone at your table can enjoy it!

    You'll Also Need

    You'll need a couple large baking sheets to freeze the watermelon, and I recommend lining your pans with nonstick foil (or a silpat mat) so the frozen melon doesn't stick. You'll also need a blender to make the slush.

    Watermelon Slushie ingredients arranged on a marble counter.

    How to Make Watermelon Slushies

    This Watermelon Slush Drink couldn't be easier to prepare! A recipe card with measurements follows, but here's a quick overview of the steps:

    1. Prep watermelon. Start by cutting your watermelon into cubes, then freeze it. It takes a few hours for the melon to freeze, so do this part ahead of time.
    2. Combine watermelon, sugar, and lemon. Once the watermelon is frozen, transfer it to your blender, along with the sugar, lemon juice, and a little water. Tip: Let the melon thaw at room temp for about 10 minutes first. This will make allow the frozen fruit cubes to soften a bit, making it easier to blend the ingredients together.
    3. Purée. Blend the mixture until it's totally smooth and has a thick, slushy texture.

    Okay, time to start sipping! Don't these Watermelon Slushies look so delicious?

    PRO TIP: Need a little help prepping the watermelon? Learn how to Peel and Cut a Watermelon with my step-by-step guide, which has tons of helpful tips and photos!
    A photo collage showing how to make a Watermelon Slushie step by step.
    Two Frozen Watermelon Drinks and a napkin on a marble counter.

    Variations

    This recipe is easy to customize depending on what's in your fridge / pantry! Here are a few ideas to try:

    • Fruit - Add other frozen fruits, such as strawberries or raspberries, along with the watermelon.
    • Sweetener - Swap out the granulated sugar for honey, maple syrup, or agave nectar (add to taste). You can also skip the sugar for a sugar-free treat.
    • Herbs - Blend in a handful of fresh basil or mint.
    • Cocktail - Add a shot of vodka, rum, or tequila to turn the slush into a cocktail.
    Watermelon Slush served in a glass garnished with a melon wedge on a marble counter.

    Serving Suggestions

    For an easy garnish, serve these frosty drinks with a little watermelon wedge or sliced lemon (or lime). Pair these drinks with a summery appetizer, like this colorful Avocado Crostini, cooling Green Goddess Dip, or this simple Pan con Tomate, and you have a party!

    Storage

    This healthy watermelon drink is best when freshly made, however you can freeze the watermelon ahead of time. Once the melon cubes are frozen, transfer them to an airtight container, the store them in your freezer until ready to use. They'll stay fresh for a month or two.

    Related Recipes

    Looking for more watermelon drink ideas? Try one of these recipes next:

    • Cool off with a glass of homemade Watermelon Lemonade!
    • This refreshing Watermelon Agua Fresca recipe uses similar ingredients, and it's even easier to make.
    • Make a batch of homemade Watermelon Simple Syrup, then use it in all sorts of summer drinks (like this delish Watermelon Soda)!
    • Turn the rest of your melon into fresh Watermelon Juice.
    • Treat your summer guests to the easiest Watermelon Punch ever!
    • Craving a cocktail? Kick back with a Watermelon Margarita or Watermelon Mojito!

    P.S. Check out all my Watermelon Recipes for more sweet and savory ideas!

    A slushie garnished with a wedge of watermelon on a patterned napkin.
    Two Watermelon Slushies and a patterned napkin on a marble counter.
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    Watermelon Slushie

    Learn how to create the perfect summer drink with fresh watermelon!
    Prep Time15 minutes mins
    Freezing Time2 hours hrs
    Total Time2 hours hrs 15 minutes mins
    Course: Drinks
    Cuisine: American
    Servings: 4 to 5 servings
    Calories: 93kcal
    Author: Ginnie

    Ingredients

    • 7 cups watermelon cubes (about ¼ of a large watermelon)
    • 1 to 2 tablespoons granulated sugar (I used 2)
    • 1 tablespoon fresh lemon juice (or lime juice)
    • ¼ to ½ cup cold water

    Equipment

    • Baking Sheet
    • Nonstick Foil

    Instructions

    • Line a large baking sheet with nonstick foil (or a silpat baking mat). You may need two pans, depending on size.
    • Place cubed watermelon on lined baking sheet in a single layer, separating cubes so they do not touch.
    • Freeze watermelon until it's frozen through, about 2 to 3 hours. (This can be done in advance.)
    • Once watermelon is frozen, let it sit at room temperature for about 10 minutes. Then add to blender, along with sugar, lemon juice, and ¼ cup cold water.
    • Blend watermelon mixture until it's smooth, thick, and slushy, adding more water only if needed.
    • Transfer slush to glasses, then serve with a straw and a spoon (if needed). Enjoy!

    Notes

    This recipe make about 40 ounces (just shy of 1.2 liters), which equals 4 larger 10-ounce (1 ¼ cup) drinks, or 5 smaller 8-ounce (1 cup) drinks.
    The slush should be very thick when you are done. I like serving it with a spoon and a straw. The spoon for eating right away, and the straw for sipping the slush once it melts a bit.
    Check out the info before this recipe card for helpful tips, recipe variations, and more!

    Nutrition

    Calories: 93kcal
    Did you make this recipe?I love hearing from you! Leave a comment and rating below, or tag @HelloLittleHome or #hellolittlehome on Instagram!
    Two Watermelon Slushie Drinks and a patterned napkin on a marble counter.
    Watermelon SlushieWatermelon Slushie
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    About Ginnie

    Ginnie is the creator of Hello Little Home! Since 2013, she has developed, written, and photographed everything you'll find on this website (from recipes to travel tips), all with you in mind. Ginnie loves trying new things (whether that’s creating delicious vegan + vegetarian recipes, exploring a new city, or trying a fun DIY project), and she hopes to inspire you to do the same! Read more about Ginnie and Hello Little Home.

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    Hi, I'm Ginnie! Welcome to Hello Little Home, which is all about inspiring everyday creativity! I'm excited to share my favorite things with you ... vegetarian recipes, travel inspiration, DIY projects, decor ideas, beauty and fashion tips, and more! Read more about me here!

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