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Overhead view of Watermelon Slushies in Glasses with Red and White Striped Straws

Watermelon Slushie (Paleo, Vegan)

  • Author: One Lovely Life
  • Prep Time: 15 minutes
  • Cook Time: 0 minutes
  • Total Time: about 15 minutes
  • Yield: About 4 cups (2 large or 4 small) 1x
  • Diet: Vegan


Watermelon Slushie – These frosty watermelon slushies are made from whole-food ingredients and taste AMAZING. So refreshing on a hot day! (Paleo, Vegan)



  • 4 cups frozen watermelon*
  • 2 Tbsp. fresh lime juice (about 1 lime worth)
  • 23 mint leaves (optional)
  • 1 cup water or sparkling water
  • 1 Tbsp. pure maple syrup, agave, or sugar (if needed)


  1. Place frozen watermelon cubes in blender. Let them sit 5-10 minutes to soften before blending. (This will make it easier on your blender)
  2. Add lime juice, mint leaves, and water.
  3. Blend 30-60 seconds until the mixtures is slushy and there are no large chunks, pausing every 30 seconds or so to scrape down the sides.
  4. Taste and add sweetener, if needed, and pulse to blend in the sweetener.
  5. Serve right away for best results!


*HOW TO FREEZE WATERMELON. To freeze watermelon for watermelon slushies, I dice it up (smaller dices are better for blending), measure it out, and then spread the cubes out onto a baking sheet lined with a silicone baking mat (so they don’t’ stick to the metal pan and don’t freeze together in one giant clump). After 1-2 hours, you can transfer the watermelon cubes to a bag to continue freezing if you like. I recommend at least 4-5 hours (overnight is better!) for the best frosty finish

BERRY VARIATION: Add 1 cup of blueberries, raspberries, or strawberries to your watermelon slushie. Frozen berries will help keep that frosty texture, but you can also use fresh if you like!

  • Category: Drink
  • Method: Blender
  • Cuisine: American

Keywords: watermelon slushie, watermelon slushy, watermelon icee, watermelon frosty, watermelon slushies, healthy watermelon slushie