Simple Blended Watermelon Daiquiri Recipe

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There is maybe no fruit that says summer more than the watermelon. Especially on those crazy hot muggy days, ice cold or frozen watermelon is the perfect thing to cool you down and help you relax. 

Well, what if you could take all the things you love about icy watermelon and mix it into a refreshing cocktail? That is exactly what I am doing today with my blended watermelon daiquiri recipe. 

What is a Blended Watermelon Daiquiri?

A blended daiquiri is a frozen cocktail made from ice, rum, lemon juice, and watermelon. While a normal Daiquiri has simple syrup or demerara sugar in it, if you are using ripe watermelon it will be plenty sweet enough. 

Watermelon daiquiri with a slice of lime served in a mason jar placed on a white table

My Approach to a Blended Watermelon Daiquiri

One word: refreshing. That is my target when making this. When you think of a boozy drink on a hot day, my blended watermelon daiquiri is what you should think of! After spending an afternoon in the hot sun working on DIY projects in the backyard, this is the drink you’ll want to have.

Because of this, I’m keeping very minimal ingredients. Additionally, I’ll go over a couple of different ways to tailor it to your tastes. 

The Challenge with Blended Drinks

Followers of Beginner Food know what I’m going to say: water is my enemy here. Well, really ice in this case. 

I want to eliminate adding any ice to my blended drink. Ice is just water, and water is not flavor. 

And, let’s all be honest, watermelon is not the strongest flavored melon either. I want the watermelon flavor to come through, so the last thing I want is a bunch of ice and water in my cocktail. 

Mixing ingredients for the watermelon daiquiri

My Solution to Not Using Ice

So that I can avoid using ice, I’m going to freeze the watermelon. This is such a simple solution that makes a huge difference to your final product. Texturally, blended frozen watermelon sticks together much better than watermelon and ice does. 

Taste wise, all that flavor stays concentrated in your drink so it stands up to the rum very well. 

What this does mean though is that you will need to plan a bit ahead. When I buy a watermelon, I generally freeze about half of it for occasions like this.

Developing Flavors and Alterations

There are two main things I’d recommend playing with:

  1. Amount of lime juice
  2. Amount of sugar

I really like key lime juice for cocktails, and pretty much always have it in stock over Persian lime juice. That said, key lime juice is a lot easier on the palette, and reasonably you can use 1.5-2x as much of it. 

Alternatively, if you really like citrus zing in your cocktails you can also go up to 1.5x the recommended amount of lime juice. 

Bottle of Bacardi. bottle of key lime juice and frozen watermelon placed in a table

The second option has to do with the sugar/ simple syrup. In the base recipe, I don’t include any because you should get plenty of sweetness from the watermelon. 

If however, you get a particularly pale or neutral watermelon, I would recommend adding 1 ounce of simple syrup to the cocktail.  

Tools Required

All you need for this recipe is a blender, a shot glass, and something to cut your limes up with.

Watermelon daiquiri with a slice of lime served in a mason jar placed on a white table

Blended Watermelon Daiquiri

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Course: Drinks
Prep Time: 5 minutes
Total Time: 5 minutes
Servings: 1 Serving
Calories: 184kcal


  • 2 ounces rum
  • 1 ounce lime juice
  • 1 cup frozen watermelon
  • Lime for garnish


  • If you don’t have any watermelon currently in the freezer, cut up 1 cup of watermelon and place in the freezer for 2-3 hours. Note that frozen watermelon is recommended but not required.
  • Add rum, lime juice, and frozen watermelon to blender
  • Blend on high until combined
  • Slice lime for garnish
  • Serve and drink responsibly


Calories: 184kcal | Carbohydrates: 14g | Protein: 1g | Fat: 0.3g | Saturated Fat: 0.02g | Polyunsaturated Fat: 0.1g | Monounsaturated Fat: 0.1g | Sodium: 3mg | Potassium: 205mg | Fiber: 1g | Sugar: 10g | Vitamin A: 879IU | Vitamin C: 21mg | Calcium: 15mg | Iron: 0.4mg
Author: Beginner Food
Beginner's Guide to Mixed Drinks and Cocktails

Nathaniel Lee is an avid cook, drawing on his decades of home cooking and fine dining experience. He is a contributing chef at Mashed, and his recipes and contributions have been featured in Tasting Table, Edible Arrangements, Insanely Good Recipes, and The Daily Meal.