Watermelon Lemonade Slushie

Refreshing Watermelon Lemonade Slushie! Blend juicy watermelon, lemon juice, and sugar for a sweet and tangy summer treat. Blend, serve, and enjoy!

Sweet summertime refreshment just got a whole lot cooler! This Watermelon Lemonade Slushie is the ultimate warm-weather treat, blending juicy watermelon and zesty lemon into a frosty, fruity delight that’s as easy to make as it is to devour.

Ready Time

15 mins


5 servings


  • 2 cups cubed seedless watermelon (about 1 small to medium-sized melon)
  • 1/2 cup freshly squeezed lemon juice
  • 1 cup granulated sugar
  • 1/4 cup water
  • Ice cubes (as needed)
  • Fresh mint leaves or lemon slices for garnish (optional)


Add the cubed watermelon to a blender and blend until smooth. You might need to do this in batches depending on the size of your blender.

Strain the blended watermelon through a fine-mesh sieve into a large bowl, pressing on the solids to extract as much juice as possible.

Discard the solids. In a medium-sized bowl, whisk together the lemon juice and sugar until the sugar is completely dissolved.

Add the lemon juice mixture to the watermelon juice and stir to combine.

Add the water to the mixture and stir until well combined. Taste the mixture and adjust the sweetness and tartness to your liking.

Pour the mixture into glasses filled with ice cubes.

Blend the mixture in a blender until it’s slushy and frozen, stopping to scrape down the sides of the blender as needed. Serve immediately, garnished with fresh mint leaves or lemon slices if desired.

Repeat the blending process until all the mixture is used up, as you’ll likely need to blend in batches depending on the size of your blender.

Pour the slushie into glasses and serve immediately to your friends and family!


Use a high-powered blender to get the smoothest watermelon puree. If your blender struggles, you might need to blend in batches.

Make sure to strain the blended watermelon through a fine-mesh sieve to get rid of any remaining pulp or fibers.

Don’t skip whisking the lemon juice and sugar until the sugar is fully dissolved – it makes a big difference in the flavor! Taste and adjust the sweetness and tartness to your taste – you can always add more lemon or sugar, but it’s harder to take it away once it’s added. Blending in batches is key – you want to make sure everything is fully incorporated and slushy before serving.

If you’re making ahead of time, blend the mixture right before serving to get that perfect slushie texture.

This recipe makes 5 servings, so feel free to adjust the ingredient amounts if you’re serving a crowd or just want to make a few drinks!

Nutrional Value

  • Calories: 174
  • Total Fat: 0.2g
  • Saturated Fat: 0g
  • Trans Fat: 0g
  • Cholesterol: 0mg
  • Sodium: 19mg
  • Total Carbohydrates: 44g
  • Dietary Fiber: 1g
  • Sugars: 39g
  • Protein: 1g
Watermelon Lemonade Slushie
Watermelon Lemonade Slushie

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