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Frozen Watermelon & Lime Slushie (No Sugar Added)

This frozen watermelon and lime slushie is a naturally sweet, refreshing summer drink made with frozen watermelon, fresh lime juice, and a pinch of sea salt. With no added sugar, it delivers pure fruit flavor, bright citrus notes, and icy slushie texture in just minutes. Perfect for hot days, parties, or a quick healthy refreshment.
Prep Time5 minutes
Total Time5 minutes
Course: Drinks
Cuisine: American
Keyword: fresh watermelon drinks, frozen watermelon drink, healthy summer drinks, no sugar added slushie recipe, watermelon lime slushie, watermelon lime smoothie, watermelon slushie recipe
Servings: 1
Author: Ella

Equipment

  • Blender
  • Knife
  • Measuring cups
  • Glasses for serving

Ingredients

Main Ingredients

4 | cups | seedless watermelon chunks (frozen)

3–4 | tbsp | fresh lime juice (from 2 limes)

1 | pinch | sea salt

Add-ins

4–5 | leaves | fresh mint

½ | tsp | fresh grated ginger

1 | tsp | lime zest

3–4 | leaves | fresh basil

1 | small piece | fresh jalapeño (optional for spice)

Instructions

  • Cut seedless watermelon into 1-inch cubes and freeze them in a single layer for 2–3 hours until solid.
  • Let the frozen watermelon sit at room temperature for about 3 minutes so it softens slightly.
  • Add fresh lime juice and sea salt to the blender first.
  • Add optional ingredients like mint, ginger, or basil if desired.
  • Add frozen watermelon chunks on top.
  • Blend on low speed for about 10 seconds to break down the chunks.
  • Increase to high speed and blend for 30–40 seconds until smooth and slushy.
  • Pour immediately into chilled glasses and serve.

Notes

  • Use ripe watermelon for the best natural sweetness.
  • Freeze watermelon in a single layer first to prevent clumping.
  • A pinch of sea salt enhances the sweetness of the fruit.
  • Serve immediately because watermelon slushies melt quickly.
  • For a stronger citrus flavor, add a little lime zest before blending.