Fresh Watermelon Margarita on the Rocks with Blackberry Ice  

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This Fresh Watermelon Margarita on the Rocks is so delicious with fresh fruity flavors from both the fresh watermelon juice and the fresh blackberries. 

With just a few ingredients, it’s the perfect summer drink to make a big batch of and pack it in a cooler to take to the beach or summer picnic’s. It’s also perfect for your Cinco de Mayo celebrations. 

Of course, with Cinco de Mayo just a few days away, don’t forget to take a look at all of my other Mexican Recipes

glass of watermelon margarita with watermelon wedge and lime

Watermelon is one of my favorite fruit to enjoy on hot summer days. It is so refreshing no matter what form it takes. 

The only thing is that once you cut open a watermelon, you need to use it up quickly. If you store it in the fridge, water will come out of it and as the cut pieces of fruit sit in this water, it will turn the watermelon pieces rancid. 

After coming home with a watermelon and making Watermelon Curry and Italian Gelo di Melone, I still had a few ounces of leftover watermelon puree. 

I had some tequila in the liquor cabinet, so I decided to reward myself with a Watermelon Margarita after all the hard work making those other Watermelon Recipes. 

I had some extra blackberries in the fridge and so this cocktail was born. 

Before we get to the perfect cocktail recipe for Watermelon Margarita, it is important to know about the key ingredient – Tequila. 

Tequila is distilled from blue agave, sugarcane and yeast. Now there are several types of tequila from Silver Tequila to Extra Anejo, which is aged for over 3 years. So with so many options, you might be wondering which tequila is best? 

What Kind of Tequila is Best for Margaritas?

Now this is a loaded question. Many purists will say the only type of tequila to make margaritas with is Tequila Blanco or Silver Tequila. This tequila is the purest form as it is generally bottled right after it is distilled, without aging. 

However, I prefer to use Tequila Reposado. This tequila is aged for 2-12 months in oak barrels. Since it is aged, is has a more mellow and smooth flavor I think it helps create the perfect balance of flavors in this recipe. In my opinion, is the perfect tequila for mixed drinks – especially fruity cocktails because the alcohol does not punch you in the face. 

As far as brands go, a lot of people love Patron. However, the last time I was in Mexico, I really fell in love with Don Julio. It is so smooth I can even drink it straight – which I cannot do with all tequila brands. Not to mention, it also has a lower price point than Patron. 

However, if you are a Patron fan and that is what’s in your pantry, you can definitely make this delicious margarita recipe with Patron as well. 

Blackberry Ice

I added the blackberry just as a fun twist because I needed to use up the blackberries but they ended up being such a delicious addition to the margarita recipe. Those fruity berry notes add so much to the flavor of the margarita. The natural sweetness of the berries come shining through. 

It is even better if you let the blackberry ice melt into the margarita and serve it up the next day. Day 2 Watermelon Margaritas with Blackberry Ice taste even better than when they are freshly made. 

All you do to make this is fill up a jumbo ice tray with a few blackberries in each cavity. Add your water and freeze it up! 

If you have any problems removing them from the trays, just hold the ice tray upside down and run a little hot water over it or dip the tray in a bowl of hot water. 

ice cube trays with blackberries

Once you hear the ice cubes start to crackle, they will be easy to remove from the trays. 

Recipe Notes

Watermelon is a naturally sweet fruit, but how sweet is is can vary so you might want to add a little simple syrup, agave syrup or honey if you fruit is not that sweet. Taste if first before you decide if it needs added sugar. 

If you would like to add more spice, you can add a few jalapeno slices to each glass. 

Classic Margarita recipes usually do a salt rim on the glass. This recipes uses tajin spice mix instead, however, you can still do a plain salted rim if you prefer. 

Making margaritas in the blender is the way to go if you are making a big batch of this refreshing Watermelon Margarita recipe. 


For a non-alcoholic version, replace the orange liqueur with orange juice and the tequila with more fresh watermelon juice. 

Instead of watermelon, you can use other melon varieties like honey dew or cantaloupe. 

Although a salt rim is more traditional, you can do a sugar rim if you prefer. 


ingredients for Watermelon Margarita
  • ice cubes or crushed ice 
  • Watermelon puree (best if made with seedless watermelon) 
  • tequila 
  • Orange Liqueur (Cointreau or triple sec) 
  • fresh lime juice 
  • tajin – a salt, lime and chili flavored salt blend. Alternately, rim the glass with plain coarse salt. 
  • blackberries 

How to Make Watermelon Margarita

  • First make the blackberry ice by dropping a few blackberries into each cavity of a jumbo ice cube tray. 
  • Fill it with water and put it in the freezer until it is completely frozen. It is best to do this the day before you plan you make your watermelon margaritas. 
  • Rim the glasses with lime and tajin as detailed how to rim a glass here
  • Now to make the drink, add some crushed ice or small ice cubes to a cocktail shaker. 
  • Add strained watermelon juice to the shaker. 
  • Add the tequila, orange liqueur and lime juice to the shaker and shake vigorously until you have a well blended watermelon margarita. 
  • Add one of the blackberry ice cubes into each glass. 
  • Pour the margaritas into the prepped glasses. 
How to Make Fresh Watermelon Margarita
  • Garnish with a lime wedge and fresh watermelon wedge. Add a few jalapeño slices if desired. 

This great-tasting drink is such a good drink on a hot day. There is no need to wait until National Margarita Day – you can enjoy this tasty cocktail recipe at any time! Who wants to wait until February 22nd rolls around again. 

Margaritas are one of the most popular drinks ordered at any Mexican restaurant. Now you can whip it up your own Watermelon Margarita with this simple recipe. 

glass of watermelon margarita on the rocks

If you are looking for more variety in your options for a summer cocktail recipe, check out this Passionfruit Mojito Recipe or Tropical Rum Punch

glasses of watermelon margarita with lime garnish and Tajin rim
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5 from 10 votes

Watermelon Margarita Recipe

A refreshing Watermelon Margarita perfect for hot summer days or your Cinco de Mayo celebrations.
Prep Time10 minutes
Course: Beverage
Cuisine: Mexican
Servings: 2 people
Calories: 142kcal


  • 6 oz. Watermelon puree
  • 2 oz. Tequila
  • 1 oz. Orange liqueur
  • 2 oz. Lime juice
  • 2 teaspoons tajin
  • A few blackberries
  • Lime wedges garnish
  • Watermelon wedges garnish


  • To make the watermelon puree, combine some ripe watermelon in a blender or food processor and puree completely.
  • Strain the watermelon puree to get a clean watermelon juice.
  • To make the blackberry ice, add a few blackberries to each section of a jumbo ice tray.
  • Add water to fill the cavities of the ice tray.
  • Freeze until completely frozen.
  • To prep the glasses, run lime along the perimeter of the glass.
  • On a small plate, sprinkle a little of the tajin.
  • Turn the glass upside down and turn in a circular motion in the tajin to basically create a salt rim with the tajin.
  • In a cocktail shaker, combine the watermelon juice, orange liqueur, lime juice and crushed ice.
  • Shake vigorously.
  • Add 1 blackberry cube into each glass and pour the Watermelon Margarita mixture over it.
  • To serve, garnish with lime wedges and watermelon pieces.
  • Add jalapeño slices if using.



Make the margarita recipe in a large blender if you are going to serve it at your next dinner party or beach outing.


Calories: 142kcal | Carbohydrates: 13g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Sodium: 3mg | Potassium: 133mg | Fiber: 1g | Sugar: 10g | Vitamin A: 498IU | Vitamin C: 15mg | Calcium: 10mg | Iron: 1mg
Did you try this recipe? Leave a comment below.Please follow me on Instagram @chefmireille or tag me #chefmireille with your pics! I’d love to share them!

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Reader Interactions


  1. 5 stars
    I love that you can make a big batch of this! I make a ton and store it in the fridge for weekend drinks with friends and family – everyone loves these. Truly a hit Recipe!

  2. 5 stars
    Thank you! I made these for our small gathering in the garden, as it was a relatively warm day, and I got rave reviews (of course, I have you all the credit!). What a delicious drink – not too sweet and so refreshing!

5 from 10 votes

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