Name: Watermelon Slushie (3 Ingredients)
Prep time: 10 min
Total time: 2 h 10 min
Cuisine: American
Ingredients: 3 cups fresh seedless watermelon, chopped and frozen; 2 tablespoons fresh lime juice; 1 cup ice cubes

Why You’ll Love This Recipe

This Watermelon Slushie is incredibly easy to make, requiring only a blender and a few pantry staples. It’s naturally sweet thanks to ripe watermelon, and the addition of lime juice brings a bright citrusy contrast. Whether you’re serving it to kids or enjoying it yourself after a workout, it’s a clean, hydrating, and flavorful treat. Plus, it’s vegan, gluten-free, and dairy-free.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

Fresh watermelon (seedless, chopped and frozen)
Lime juice (freshly squeezed)
Ice cubes

Directions

Start by cutting the watermelon into cubes and removing any seeds if necessary. Place the cubes on a tray lined with parchment paper and freeze for at least 2–3 hours until solid.
Once frozen, add the watermelon cubes to a blender.
Squeeze in the fresh lime juice.
Add a handful of ice cubes for extra frostiness.
Blend on high until smooth and slushy in texture.
Taste and adjust with more lime juice if needed.
Serve immediately in chilled glasses and enjoy.

Servings and timing

This recipe makes approximately 2 servings.
Prep time: 10 minutes
Freeze time: 2–3 hours
Total time: 2 hours 10 minutes

Variations

Minty Twist: Add a few fresh mint leaves to the blender for a refreshing herbal note.
Coconut Flavor: Replace some of the ice with coconut water ice cubes for a tropical variation.
Berry Boost: Add frozen strawberries or raspberries for an extra fruity kick.
Sweetener Option: If your watermelon isn’t very sweet, add a teaspoon of honey or agave syrup.

Storage/Reheating

Watermelon slushies are best enjoyed immediately after blending. If you have leftovers, store them in the freezer in an airtight container. When ready to drink, let it sit at room temperature for 10–15 minutes and re-blend to restore the slushy texture. Do not microwave.

FAQs

What type of watermelon is best for this slushie?

Seedless watermelon is ideal since it saves time and blends more smoothly without hard black seeds.

Can I use pre-frozen watermelon from the store?

Yes, store-bought frozen watermelon works well if you don’t have time to freeze fresh cubes yourself.

How do I make this without a high-speed blender?

Chop your watermelon into smaller pieces and add a little water to help your regular blender handle the frozen chunks.

Can I make this slushie ahead of time?

It’s best enjoyed fresh, but you can freeze the slushie and re-blend before serving.

Can I use lemon juice instead of lime?

Yes, lemon juice will give a slightly different citrus profile but still pairs nicely with watermelon.

What can I use instead of ice?

You can freeze more watermelon or use frozen coconut water or fruit juice cubes for a twist.

How can I make it sweeter naturally?

Add very ripe bananas or a splash of 100% fruit juice for natural sweetness.

Is this suitable for a vegan or gluten-free diet?

Yes, it’s naturally vegan, gluten-free, and dairy-free.

Can I make this into popsicles?

Definitely—just pour the blended mixture into popsicle molds and freeze overnight.

Conclusion

This 3-ingredient Watermelon Slushie is a refreshing, healthy treat that’s as simple to make as it is satisfying. Whether you’re cooling down on a hot day or looking for a quick fruity fix, this icy drink is a must-try. With easy customizations and wholesome ingredients, it’s a go-to summer favorite for all ages.