Drinks, Snacks

Frozen Watermelon Lemonade Summer Slushie


SummerTime Treat

My 3 year old is obsessed with watermelon. He stands on a chair next to the counter and devours the watermelon as I cut it. He can eat the entire watermelon by himself if I’m not careful. In other words, it’s a miracle this Frozen Watermelon Lemonade ever even happened.

And we’re so glad that it did happen. It’s perfectly refreshing on a hot summer day and makes a great treat for both kids and adults alike. Unlike many frozen watermelon drinks, this one is non-alcoholic so you can share it with your kids. Or not. No judgement from me if you save it all for yourself. I’m sure you already share with them plenty. But if your kids are anything like mine then they’ll end up finding it anyway. You see, I swear my kids are part bloodhound. I can’t hide anything from them. They always end up sniffing it out and finding anything I try to hide.

I remember when I was a kid my mom would often bring a large bowl of watermelon outside for my sisters and I to eat while we played. She would set it on the picnic table and we would help ourselves to it in between cartwheel contests and swinging on the swings. I find myself doing the same. This Frozen Watermelon Lemonade now occasionally replaces the chopped watermelon. My kids sit to the side of their sandbox and down their lemonade.

Perfect Summer BBQ Recipe

We’ve been hitting 100 degree temperatures this last week and I’ll tell you that this Frozen Watermelon Lemonade is such a perfect treat for those unbelievably hot days. It cools you off plus it’s really just delicious. It would be a perfect drink to accompany any backyard BBQ this summer. This frozen lemonade looks great in a mason jar with a straw and a lemon slice. Your guests would love it!

Other recipes that would make a great appearance at a summer backyard BBQ are Cucumber Avocado Salad , Grilled Pineapple, and Grilled Veggie Kabobs. Obviously no one would mind a dessert either, so give this German Chocolate Cake recipe a try. Like all my recipes, it is gluten-free and free from eggs, dairy, peanuts, and cashews!

How To Make Frozen Watermelon Lemonade

This recipe for Frozen Watermelon Lemonade is super simple and only requires a few ingredients. It does require a little planning ahead as you will need frozen watermelon. All you do for this drink is blend 6 cups of frozen watermelon chunks with the juice of 3 lemons, 1/3 cup sugar, and 3/4 cup water. That’s it! Super simple. If you prefer it a little sweeter then just increase the amount of sugar to 1/2 cup. Enjoy!

Frozen Watermelon Lemonade

A refreshing slushie-like twist on watermelon lemonade. Non-alcoholic.
5 from 5 votes
Prep Time 15 minutes
Total Time 15 minutes
Course Appetizer, Dessert, Drinks, Snack
Cuisine American
Servings 4
Calories 141 kcal


  • Blender


  • 6 cups frozen watermelon chunks
  • ¾ cup water
  • 3 lemons , juiced
  • cup sugar


  • Juice the lemons. Add all ingredients to a blender and blend until smooth. Serve immediately.
Keyword Lemonade, Watermelon

Did you try this recipe? If you did, then I would love to hear about it! Let me know what you thought in the comment section below! Share a picture on Instagram and tag me, Allergy a la Mode, and hashtag it #allergyalamode.

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  1. I love how its easy to make and watermelon is good to enjoy especially when its super hot.

  2. 5 stars
    This is exactly the recipe I was looking for and I know my 5-year-old will love it too! Sounds delicious and refreshing!!

  3. Gabriela Herrera

    5 stars
    This looks so refreshing.

  4. 5 stars
    It’s just about time for our watermelons to be ready to eat. This slushie sounds so refreshing and perfect for the summer. It gets super hot here in the south, so I will definitely have to make this watermelon lemonade slushie this summer.

  5. 5 stars
    This sounds so refreshing and perfect for summer. My kids love both watermelon and lemonade, so this would be a total hit here.

  6. 5 stars
    This looks really good for such a simple recipe! I love watermelons.

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