3-Ingredient Watermelon Slush

Watermelon slush in a mason jar with a straw.

Try this easy Watermelon Slush for a refreshing summer treat on a hot summer’s day that only uses three simple ingredients!

Watermelon slush in a mason jar with a straw.

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3-Ingredient Watermelon Slush

Nothing says summer like watermelon. They cool, hydrate and fill you up on a hot summer afternoon. Also, they’re the perfect dessert for any BBQ or picnic menu.

I love coming up with new ways to use summer produce that are quick, easy and taste delicious. Being a gardener, I almost always have extra produce lying around during the summer that I’m looking to use up and this watermelon slush recipe is perfect for that and it will definitely quench your thirst on a hot summer day.

I tried making it using fresh watermelon and ice, but the consistency wasn’t what I was looking for, so I decided to freeze the watermelon and see if that made a difference.

It definitely worked, producing a silkier more even consistency, so the next time you’re cutting a watermelon just throw three cups in a freezer bag to have ready whenever you want to make your slush.

If watermelon isn’t your thing, then you may want to try this 3-Ingredient Cherry Slush. Happy summer friends!

Want more summer recipes? Here are a few of our favorites:

How to Make 3-Ingredient Watermelon Slush:

Frozen chunks of watermelon in a blender.

Blend all ingredients until smooth. (You may need to adjust the amount of water to get the consistency that you prefer.)

Pour into a glass, sit on your porch and enjoy!

Watermelon slush in a mason jar with a straw.

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3-Ingredient Watermelon Slush

Frozen watermelon, water and sugar blended together to make a refreshing summertime drink.
Prep Time5 minutes
Total Time5 minutes
Course: Drinks
Cuisine: American
Keyword: 3-Ingredient Watermelon Slush
Servings: 2 slushes
Calories: 138kcal



  • 3 cups cubed frozen watermelon
  • approx. 1 1/4 cups water
  • 3 tbsp sugar


  • Blend all ingredients until smooth. You may need to adjust the amount of water to get the consistency that you prefer.
  • Pour into a glass, sit on your porch and enjoy!


Calories: 138kcal | Carbohydrates: 35g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 2mg | Potassium: 256mg | Fiber: 1g | Sugar: 32g | Vitamin A: 1297IU | Vitamin C: 18mg | Calcium: 16mg | Iron: 1mg

This post was originally published in June of 2015, but has been updated for your convenience.

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  1. What a great recipe! Very popular among my 4-year-old and his friends when they got back from a hot and dusty day in day care today. Hopefully our summer here in Denmark will last long enough for us to make plenty of slush ice :) I was thinking that frozen pineapple might work as well?
    1. Tina, I'm so glad you enjoyed it! Watermelon is mostly water so it works well. Pineapple may end up thicker and have more texture to it, but you could definitely try!
  2. Thanks for sharing this recipe, Missy! It sounds delicious and the perfect solution for the last of the watermelon no one wants to finish! :) I can't wait to try it with my kids.

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