Recipe Overview

Why you’ll love it: This watermelon slushie is an easy summer refresher perfect for hot, humid days. Made with just a handful of ingredients! Turn your leftover watermelon into a refreshing summer drink (or buy a watermelon just for this recipe!).

How long it takes: 10 minutes
Equipment you’ll need: blender
Servings: 2 to 3, depending on size of serving

Watermelon slushie in tall glass, topped with lime slice and fresh mint. Another in background.
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Juicy watermelon, with a touch of lime and honey, blended into an icy refreshing drink—does it get any better than that on a hot day? It’s slushy, it’s fruity, it’s refreshing, and it is summer in a glass.

In other words, this watermelon slushie is everything you want in a summertime drink, and it’s also non-alcoholic. It’s a perfect choice for those of us who happen to not be drinking alcohol for one reason or another. With a sprig of fresh mint and a slice of lime, this slushie makes an amazing option for baby showers (and those who aren’t the guest of honor can spike their slushies!).

This watermelon slushie won’t leave you longing for an ice-cold beer or a vodka lemonade. It has plenty of refreshing flavor!

Reasons To Love Watermelon Slushies

  • Easy to make. When it’s summertime, you want the livin’ to be easy. Which means you don’t want to be peeling, chopping, and coring a bunch of fresh fruits for a frosty drink. This watermelon slushie requires just seedless melon and fresh lime, easy peasy.
  • Super refreshing. Watermelon is a natural hydrator, which is why it’s everyone’s favorite summer snack. This slushie will keep you cool on even the hottest summer days!
  • Cocktail option. If you want, add a shot of vodka to your watermelon slushie to make a cocktail. Totally up to you! Or try frosé (a frozen rosé slushie) or a frozen Sangria slushie.
Ingredients needed for watermelon slushie recipe.

What You’ll Need To Make a Slushie

You’ll find recipe measurements and instructions on the recipe card below in a printable format.

  • Watermelon: This watermelon slushie recipe is a great way to use up that extra watermelon you may have. Make sure it’s a seedless watermelon or you’ll have to pick out the seeds.
  • Water: Add a little drizzle, just enough to help the blender run.
  • Honey: You can add more or less, depending on your preference and the sweetness of your watermelon.
  • Fresh Lime Juice: A good squeeze of lime brightens up the flavor and keeps the slushie from becoming too sweet.
  • Garnish: Sprigs of fresh mint and slices of lime make it fancy.

Flash Freezing Watermelon

To keep the juicy watermelon cubes from freezing into one solid mass, set them on a parchment-lined baking sheet and freeze until the cubes are solid. Then, transfer to an airtight container or freezer bag.
Overhead view of two watermelon slushies with mint and lime garnishes.

How To Make A Watermelon Slushie

Add the frozen watermelon cubes, water, lime juice, and honey to your blender.

Turn the blender to high speed and blend until all the ingredients are fully combined and the mixture is smooth.

Taste the watermelon slushie and add more honey if needed. If the consistency is too thin, add a few ice cubes and blend again. If it’s too thick, add a little water and blend again. Keep in mind that the slushie will get thinner as it melts.

Serve with a sprig of fresh mint and a slice of lime, if desired.

Slushie Options

  • Try different fruit combos. Substitute frozen blueberries, strawberries, peaches, mango, or another fruit of your choice for a portion of the watermelon.
  • Substitute a flavored sparkling water. Add a flavored sparkling water instead of the still water and lime juice to make a watermelon spritzer.
  • Spike it. Add chilled vodka, white (silver) rum, or white tequila (silver or blanco), to taste.
  • Use lemon instead of lime. Instead of lime juice, add a squirt of lemon juice. Garnish with a fancy little lemon twist. If you’d like something a bit different, try watermelon lemonade with mint (cocktail option included).
  • Blend mint into the slushie. For a frozen watermelon mojito vibe, blend a few leaves of mint with the rest of the slushie ingredients. Garnish with additional mint leaves. If you want to try something a little different, basil also pairs well with watermelon and lime.
Close up of top of slushie, showing texture.

Storage Tips

Like all slushies, watermelon slushies are best enjoyed immediately. If you have leftovers, you can refrigerate them for up to a day, but they won’t have the same slush-like consistency. Stir well before serving.

Leftover Love

Pour leftover watermelon slushie into a popsicle mold to make watermelon ice pops. I recommend adding a touch more honey if your slushie isn’t very sweet because freezing dulls the sweetness of the melon.

More Summer Drinks

Recipe

Watermelon Slushie

5 from 2 votes
Prep Time: 5 minutes
Total Time: 5 minutes
Servings: 4 servings
This watermelon slushie is an easy summer refresher perfect for hot, humid days. Made with just a handful of ingredients!
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Ingredients 

  • 4 cups seedless watermelon, cubed and frozen for at least 24 hours (see note)
  • ¼ cup water
  • 2 tablespoons fresh lime juice (from 1 lime)
  • 2 tablespoons honey, or to taste (substitute sugar if desired)
  • Fresh mint leaves for garnish (optional)
  • Lime slices for garnish (optional)

Instructions 

  • Place the frozen watermelon, water, lime juice, and honey in a blender.
    4 cups seedless watermelon, cubed and frozen for at least 24 hours, ¼ cup water, 2 tablespoons fresh lime juice, 2 tablespoons honey, or to taste
  • Blend on high speed until all the ingredients are fully combined and the mixture becomes slushy and smooth.
  • Taste the mixture and adjust the sweetness with more honey (or sugar) if needed. If it’s too thin, add a few ice cubes and blend again. If it’s too thick, add a little water and blend again.
  • Serve immediately garnished with a sprig of fresh mint and a slice of lime.
    Fresh mint leaves for garnish, Lime slices for garnish

Notes

  • How to freeze watermelon: To keep the watermelon cubes from freezing into one solid mass, arrange them in a single layer, sides not touching as much as possible, on a parchment-lined baking sheet. Freeze until the cubes are solid and then transfer to an airtight container or freezer bag until ready to use.
  • Try different fruit combos: Substitute frozen strawberries, blueberries, peaches, mango, or another fruit of your choice for a portion of the watermelon.
  • Make it a cocktail: Add chilled vodka, white (silver) rum, or white tequila (silver or blanco), to taste.
  • Recipe completely revised 3/2024 (previously strawberry watermelon slushie spritzer). 

Nutrition

Serving: 10oz., Calories: 79kcal, Carbohydrates: 21g, Protein: 1g, Fat: 0.2g, Saturated Fat: 0.03g, Polyunsaturated Fat: 0.1g, Monounsaturated Fat: 0.1g, Sodium: 3mg, Potassium: 184mg, Fiber: 1g, Sugar: 18g, Vitamin A: 869IU, Vitamin C: 15mg, Calcium: 13mg, Iron: 0.4mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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42 Comments

  1. kat says:

    This is such a lovely idea! There is always lots of watermelons and strawberries at my house during summer, so I will definitely be trying this out! Thanks for the wonderful recipe :)

  2. Kristen says:

    I know one thing – I’d call it plain good! Yum!

  3. Christa Kelso says:

    Whenever I’m reaching for watermelon or strawberry chewy candies (my favorite things ever) I’m gonna make one of these instead. Much healthier & still has the same awesome flavors! YUMM!!!

    1. Rachel says:

      Good plan! But I love candy too…. ;)

  4. Debra Kapellakis says:

    Yep, Summer in a glass! YUM! BRAVO!

  5. Jen @ My Kitchen Addiction says:

    Ooh… I love this! I’ve done my share of drinking water at get togethers while my hubby and friends are drinking beer, wine, and cocktails. I will have to make myself a fun drink now :)

  6. Ashley says:

    This is so pretty, and I feel refreshed just staring at it!! Perfect non- bOozed up beverage for all my friends expecting lil babies soon but still deserve a fun sipper.

  7. Kelly Senyei says:

    Love this! It looks beyond refreshing, and the colored straws are adorable – a food styling “must”!

  8. Chung-Ah | Damn Delicious says:

    I’m not much of an alcoholic drinker so this drink is just perfect for me!

  9. Tracey says:

    This looks so refreshing! I love the pretty pink color too, it’s perfect for summer :)