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A Small Glass Filled with Watermelon Slushie and Garnished with Fresh Mint Leaves

Watermelon Slushie

This Easy Watermelon Slushie is the refreshing frozen drink you need on those hot summer days! It's a sweet and healthy homemade beverage that's naturally gluten-free, vegan, paleo and low-carb with no refined sugar used.

Course Drinks
Cuisine American
Keyword homemade slushie, watermelon drink, watermelon slushie
Prep Time 5 minutes
Freeze Time 4 hours
Total Time 5 minutes
Servings 4 servings
Calories 86 kcal
Author Kelly


  • 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

Optional Garnish

  • Fresh mint or fresh basil leaves


  1. 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.

    Cubes of Frozen Watermelon Inside of a Glass Blender
  2. 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.
    The Combined Frozen Drink Ingredients in a Blender with a Metal Spoon
  3. Divide equally into glasses, serve, and garnish with some fresh mint or basil.
    A Watermelon Slushie in a Drinking Glass with Two Mint Leaves on Top

Recipe Video

Nutrition Facts
Watermelon Slushie
Amount Per Serving (1 serving)
Calories 86 Calories from Fat 9
% Daily Value*
Fat 1g2%
Carbohydrates 18g6%
Fiber 1g4%
Sugar 15g17%
Protein 1g2%
* Nutrition facts are provided as a courtesy using the WPRM recipe calculator. It is best to make your own calculations to ensure accuracy. We expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website. Percent Daily Values are based on a 2000 calorie diet.