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This 3-ingredient watermelon smoothie is next-level refreshing! And with fresh mint and cucumber, it’s basically a spa day in a glass. Whip it up in 5 minutes for the easiest (and most delish) way to cool off on hot summer days.

A watermelon smoothie with a stack of cucumbers on one side and a watermelon on the other side.
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Your New Summer Sipper

It’s no secret that we’re all about smoothies around here. I mean, seriously, how could you not love a “food group” (yes, I said food group) that sneaks in superfoods while still being ridiculously tasty and easy to make?

And I know I’m committing a culinary sin by saying this, but I’m not the biggest fan of eating watermelon on its own. I know, I know. I blame it on a childhood melon allergy (which is now gone, but the trauma remains).

But I’ve finally found a way that I actually really enjoy watermelon—smoothie form! It pairs so well with other cool, summery ingredients, like mint and cucumbers. So today, we’re blending up this refreshingly delish watermelon smoothie that’ll make you a believer too!

Two watermelon smoothies with red straws and cucumber and mint topping them and watermelon and cucumber slices next to them.

You Only Need 3 Ingredients

  • Watermelon: We’ll start with 2 cups of frozen seedless watermelon. Just be sure to chop and freeze the cubes beforehand. (This is how we get that icy, sorbet-like consistency without ice!)
  • Cucumber: You can peel or not peel the cucumber—the world is your oyster. (Leaving the peel on makes the smoothie more brown but provides extra fiber and nutrients – oh, the conundrum!)
  • Mint: Mint makes this watermelon smoothie that much more refreshing (even more so than just the raw hydration of watermelon!). A few sprigs of fresh mint leaves go a long way!
  • Optional: Water and honey can be added as needed here. You may need water to get your blender going. And while watermelon is very sweet, a touch of honey can help amplify the sweetness.

Got Watermelon?

Freezing watermelon is a great way to use up the other half of this gigantic fruit. We have all been there: We get a delicious, juicy melon and cut it up, only to realize it’s enough for a small army. So, freeze half of it and use it in future smoothies and drinks! (You can thank me later.)

Two watermelon smoothies with red straws and cucumber and mint topping them.

This Smoothie Is Super Easy To Make

You only need a blender and about 5 minutes. Check it out for yourself!

Step 1: Blend The Smoothie
Add frozen watermelon chunks, cucumber, and mint to a blender. Blend until smooth, adding water as needed to get the blade moving. Yup, that’s it!

Melon Tip

I don’t like adding ice to my smoothies, partly because I don’t like the strain it puts on my blender and because it just seems to water it down. I prefer to freeze my fruits and let those keep my smoothie cool and frothy. So in this watermelon smoothie recipe, I recommend cubing and freezing the melon beforehand.

Frozen watermelon cubes on a lined baking tray.
To prevent the watermelon cubes from sticking together, keep them in a single layer on a parchment-lined tray. They don’t have to be frozen solid for this recipe—a quick hour or so does wonders for the deliciousness of the smoothie.
Watermelon smoothie ingredients being blended in a blender.
Adjust the optional honey to taste—depending on how ripe your watermelon is, you might want a little more or a little less. Taste and tweak until it’s just right!

For The Best Smoothie…

Don’t Blend Too Long: Watermelon has a high water content, so stop your blender as soon as the mixture is smooth to prevent a watery texture.

Balance The Sweetness: If your watermelon is extra sweet, a squeeze of lime juice can work wonders to add tartness and brighten up the flavors.

Add More Frozen Fruits: Feel free to toss in some frozen strawberries, mango, banana, or pineapple for extra fruity flavors and antioxidants!

Coconut Water Twist: Swap plain water for some coconut water to up the hydration and add a subtle tropical vibe.

Meal Prep It: Chop and freeze all the ingredients in a baggie for a meal-prepped version of this watermelon smoothie. When ready to enjoy, empty the frozen ingredients into your blender, add water, and blend!

Two watermelon smoothies with red straws and cucumber and mint topping them.

Refreshing Watermelon Cucumber Smoothie

4.43 from 7 ratings
Prep: 5 minutes
Total: 5 minutes
Servings: 2 smoothies
This 3-ingredient watermelon smoothie is next-level refreshing! And with fresh mint and cucumber, it’s basically a spa day in a glass. Whip it up in 5 minutes for the easiest (and most delish) way to cool off on hot summer days.

Ingredients 

  • 2 cups watermelon, previously chopped and frozen, 300 g,
  • ½ cucumber, peeled or unpeeled*
  • 2 sprigs of mint
  • water, as needed
  • honey, as needed
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Instructions 

  • Blend: Add watermelon, cucumber, and mint leaves to a blender. Blend until smooth, adding water as needed to get things moving. Taste and add honey as needed to suit your liking.

Notes

To peel or not to peel the cucumber? Peeling it gives the smoothie a more vibrant red color. Leaving the peel on does make it a bit browner but provides more health benefits from the peel (like fiber!).
To freeze watermelon, lay chopped pieces on a parchment paper-lined sheet in a single layer. Freeze until hard, then transfer to a freezer-safe container or baggie until you need them.
Storage: I recommend only making enough for what you will drink that day, as the mixture doesn’t store well once blended.

Nutrition

Serving: 1smoothie | Calories: 62kcal | Carbohydrates: 15g | Protein: 2g | Sodium: 7mg | Potassium: 332mg | Fiber: 2g | Sugar: 10.5g | Vitamin A: 2350IU | Vitamin C: 22.3mg | Calcium: 30mg | Iron: 2mg

Nutrition information calculated by Sarah Bond, degreed nutritionist.

did you make this?Leave a comment below and tag @liveeatlearn on social media! I love seeing what you’ve made!
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4.43 from 7 votes (5 ratings without comment)

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2 Comments

  1. Anouk says:

    5 stars
    I’m procrastinating going to the supermarket (omg, can you image :’) ) and I noticed that during our next hot mess I should definitely try some other nail polishes. Literally EVERY hand picture of me I wear red nail polish hahaha. Remind me next time 😛

  2. KC says:

    3 stars
    I found the flavour to be fairly bland without honey and I didn’t want it to be super sweet. I added lemon flavoured soda water and a few frozen raspberries, and then it was great.