Serves: 2
Total Time: 5 minutes
Macros (Per Serving):
Calories: 65 | Carbs: 17g | Sugar: 14g | Fat: 0g | Protein: 1g | Fiber: 1g
A Quick Hello 🍃
If summer had a flavor, this would be it.
This Watermelon Mojito Slushie is ice-cold, super refreshing, and packed with juicy watermelon, fresh mint, and zippy lime juice.
No alcohol, no stress—just good vibes in a glass. It’s basically the spa day of drinks.
🧡 Why I Love This Recipe
I made this one afternoon after a hot day out in the garden, and wow—it hit the spot. It’s fresh, a little tangy, and so hydrating. I’ve kept frozen watermelon in my freezer ever since.
Here’s why I love it:
- Only 4 ingredients!
- It’s a drink and a snack
- Way more exciting than water or plain juice
- Feels fancy, but it’s so easy
- You can sip it slowly and stay cool

🍉 What You’ll Need
- 3 cups frozen watermelon (cubed)
- Juice of 1 lime (about 2 tbsp)
- 6 fresh mint leaves
- 1 cup ice cubes
- Optional: splash of sparkling water for topping

⚙️ Tools You’ll Need
- Blender
- Citrus juicer (or just use your hands)
- Measuring cup
- Tall serving glasses
- Spoon for stirring
🧪 Why This Recipe Works (Quick Science)
Watermelon is 92% water, which makes it perfect for slushies. Freezing it first gives you that thick, icy texture without adding extra water. Lime juice brings acidity and brightness, while mint adds a cooling compound called menthol—so every sip feels extra refreshing.
❌ Common Mistakes
- Using unfrozen watermelon – You’ll get juice, not a slush.
- Over-blending – Can turn watery fast. Just pulse until it’s fluffy.
- Too much mint – It’s strong. Stick to about 6 leaves or it’ll taste grassy.
- Not seeding the watermelon – Seeds can mess up texture.
🥄 Step-by-Step Instructions
Step 1: Add 3 cups frozen watermelon cubes to blender
What to do: Toss in 3 cups of frozen watermelon cubes. They should be fully frozen and seedless (or deseeded).

Step 2: Add juice of 1 lime (about 2 tbsp)
What to do: Squeeze in the juice from 1 fresh lime, about 2 tablespoons.

Step 3: Add 6 fresh mint leaves
What to do: Tear up 6 fresh mint leaves and add them to the blender for a more even flavor.

Step 4: Add 1 cup of ice cubes
What to do: Pour in 1 cup of ice to give it that slushie texture.

Step 5: Blend until slushy
What to do: Blend everything for 20–30 seconds. It should be thick and icy, not runny.

Step 6: Pour into glasses & top with sparkling water (optional)
What to do: Pour into two glasses. Add a splash of sparkling water if you want a fizzy finish. Garnish with extra mint or a lime slice.

🧊 Make-Ahead Tips
Cut and freeze your watermelon cubes ahead of time! Just store them in a zip-top bag and pull them out when you’re ready.
🥡 Leftovers + Storage
Honestly, it’s best fresh. But if you’ve got extra, pour it into an ice cube tray and freeze. When ready, re-blend with a splash of lime juice or sparkling water.
🔁 Substitutions + Variations
- Add sweetness: Add 1 tsp honey or agave if your watermelon isn’t sweet enough
- Add cucumber: ½ cup frozen cucumber adds a spa-like twist
- Turn it into a cocktail: Add a splash of white rum (adult version!)
- Go tropical: Add frozen pineapple with the watermelon
🍽 What to Serve With
This slushie pairs perfectly with:
- Grilled shrimp tacos
- Caprese salad
- Chips and guacamole
- Fresh fruit skewers
- Spicy BBQ anything
❓ FAQ
Can I use fresh watermelon?
Only if you freeze it first. Otherwise, it’ll just make juice.
Do I need a high-speed blender?
It helps. If using a regular blender, cut watermelon into smaller chunks.
Can I skip the mint?
Yes! But it won’t have that mojito-style vibe.
Can I make it ahead?
You can prep ingredients ahead, but blend right before serving for the best texture.
💬 Final Thoughts
This Watermelon Mojito Slushie is a little slice of summer in every sip. It’s simple, refreshing, and tastes way fancier than it actually is. Give it a try and drop a comment—tell me how you liked it or what fun twist you added!

