This Watermelon Slushie is easy to make with just 3 ingredients. It’s sweet, refreshing and the perfect healthy drink to cool you down on a hot summery day! Naturally gluten-free, vegan, paleo with no refined-sugar.
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Updated May 2023
Easy Watermelon Slushie Recipe
Looking for a healthy and refreshing summer drink? This Watermelon Slushie is super refreshing, delicious and comes together quickly. All you need are just 3 simple ingredients and your blender!
It’s the perfect drink to cool you down on a hot day and is naturally vegan, dairy-free, gluten-free, paleo and low carb depending on the sweetener you use. It takes less than 5 minutes to make using a blender or food processor.
What are slushies made of
A slushy or slushie is a partially frozen drink / beverage typically made with ice, frozen fruit or flavored syrup.
Ingredients you need
- Watermelon – cut into cubes and freeze. Visit my post for How to cut a watermelon with tips for choosing the best watermelon
- Pure maple syrup – you’ll need 2-3 tablespoons. Feel free to leave the sweetener out if your watermelon is sweet enough or sub any type of liquid sweetener like Lakanto sugar-free maple syrup or monk fruit to keep this recipe low carb. Leave out for Whole30.
- Freshly squeezed lime juice – about 1 medium lime.
- Filtered water – add only as much as needed until desired consistency is reached. Feel free to use or sparkling water for a fun spin.
- Fresh mint or fresh basil leaves – for serving.
How to make this Watermelon Slushie
- Blend ingredients: In a food processor or blender, add the watermelon, maple syrup, lime and 1/4 cup of water. Blend until there are no chunks and the mixture becomes the consistency of a thick slushie.
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- Adjust to taste: Taste and add more sweetener, as needed. Add a little bit more water, if the mixture is too thick or some shaved ice as needed until desired consistency is reached.
- Pour and serve: Divide equally into glasses, serve, and garnish with some fresh mint or basil.
How to pick a good watermelon
Follow these simple tips to select the most ripe watermelon possible. Picking the perfect watermelon is half the work!
- Look for a Field Spot: A “field spot” is the area on the watermelon that was sitting on the ground as it grew. This area will be a yellow color if the watermelon is ripe. The darker the yellow spot, the riper the watermelon. Don’t be fooled by a completely green watermelon – that means it’s underripe!
- Avoid Shiny Melons: If a watermelon has a shiny surface, it’s likely underripe. The perfect watermelon will have a dull surface.
- Test the Firmness: A ripe watermelon will be pretty firm. If you knock on the melon with your knuckles, you can tell if it’s too soft or just right. A soft melon is probably starting to spoil.
- Avoid Lumpy Surfaces: If your watermelon has wonky lumps or bumps on it, it probably didn’t get enough sun or water. The best watermelons are a smooth oval or circle shape. If you see black spots on the melon, it’s probably okay. Dark brown dots on the surface of a melon mean it’s extra sweet.
Tips for Success
- Blend in batches: For best results, do not over-fill your blender or food processor. Blend 1 cup at a time as needed.
- Add sweetener to taste: If your watermelon isn’t very sweet, add more sweetener to taste. Feel free to leave the sweetener out entirely if your watermelon is sweet enough.
More healthy watermelon recipes you will love:
Watermelon Strawberry and Basil Salad
This Watermelon Slushie is easy to make with just 3 ingredients. It's sweet, refreshing and the perfect healthy drink to cool you down on a hot summery day! Naturally gluten-free, vegan, paleo with no refined-sugar.
- 5-6 cups cubed seedless watermelon , about 1 medium seedless watermelon, diced and frozen for at least 4 hours
- 2-3 tablespoons pure maple syrup , or sub with Lakanto SF maple syrup, 1-2 drops of pure liquid monk fruit or preferred sticky liquid sweetener. Leave out for Whole30.
- 2 tablespoons fresh lime juice , (about 1 medium lime)
- 1/4 - 1/2 cup filtered water , add only as much as needed until desired consistency is reached
- Fresh mint or fresh basil leaves
In a food processor or blender, add the watermelon, maple syrup, lime and 1/4 cup of water. Blend until there are no chunks and the mixture becomes the consistency of a thick slushie.
- Taste and add more sweetener, as needed. Add a little bit more water, if the mixture is too thick or some shaved ice as needed until desired consistency is reached.
- Divide equally into glasses, serve, and garnish with some fresh mint or basil.
Recipe Video
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