Blue Mojito

The Blue Mojito is a stunning twist on a classic cocktail. Like its namesake, the blue mojito is crafted with a blend of rum, lime juice, sugar syrup, and mint topped with bubbly water. But this blue curaçao cocktail has a color that will make you dream of crystal-clear waters and sandy beaches.

So read on to learn all the details about ice-cold highball cocktails made to quench your thirst and add a splash of fun. Or just grab your cocktail shaker, hit that Jump to Recipe button, and let’s make a blue curacao mojito!

a bright blue mojito cocktail in a highball glass garnished with mint and lime.
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What is a mojito

Mojito is a Cuban highball that is a sour variation. Sours are one of the classic cocktail families that includes the daiquiri, margarita, and gimlet. The sour formula means that the mojito has a standard base of liquor, liqueur or simple syrup, and citrus juice.

 

Highball cocktails like this blue mojito take that sour base and add some sort of carbonated water plus ice, lots of ice! For more examples of highball cocktails, check out this Aperol soda, Blueberry Gin and Tonic, or Elderflower Collins.

Ingredients

bottle of blue curacao.
  • Rum: use a silver or white rum for a mojito.
  • Blue curaçao: an orange-flavored liqueur that gives this blue mojito its gorgeous color.
  • Lime juice: freshly squeezed only, please!
  • Simple syrup or agave: for a touch of sweetness. Use more or less to your taste.
  • Mint: fresh mint is what makes this a mojito.
  • Soda water: for a mojito, use any carbonated water except for tonic water, which has sugar and quinine and would change the flavor.

What are the differences between triple sec, curaçao, Cointreau, and Grand Marnier?

Oooh, we need an orange liqueur Venn diagram! Triple sec is a style of orange liqueur, of which Cointreau is the classic triple sec. So the Cointreau circle is entirely within the triple sec subset.

Triple secs and curaçao are both made with orange peel and beet sugar alcohol, and are therefore highly overlapping. But some curaçao differs in having additional flavors beyond orange. Interestingly, curaçao, although named after the Caribbean island, does not have a geographic determination like Champagne, Prosecco, Cognac or tequila.

Finally, Grand Marnier has no overlap with any of these other orange liqueurs because it’s based in brandy and has a stronger, sweeter orange flavor. Choose Grand Marnier when you’re baking with orange liqueur, like these orange muffins or orange French toast.

Please see the recipe card below for complete information on ingredients and quantities.

Variations and substitutions

  • Make a classic mojito instead with a full ounce of simple syrup and omit the blue curaçao.
  • No blue curaçao? No worry! You can make a blue mojito with blue food coloring and a clear orange liqueur.

Recipe tips and tricks

Step 1: To start making your blue mojito, fill a highball or other tall glass halfway with crushed or cubed ice. Smaller bits of ice have more surface area, melt quicker, and create a chilly, refreshing drink. Save large ice cubes for cocktails meant for slow sipping, like this Aperol Negroni.

Step 2: Add the fresh mint leaves to your cocktail shaker. Use a muddler or the back of a spoon to press down three or four times gently muddle the mint until you can smell the mint.

Don’t over-muddle your mint or you’ll have a bitter blue mojito! If you suspect you might be a closet over-muddler, read this post from Serious Eats about how to muddle.

Step 3: Add the rum, blue curaçao, lime juice, and syrup to your shaker with an ice cube or two, then double strain the cocktail into your highball glass. Muddling and straining will keep you from getting mint bits in your teeth. Yuck.

Step 4: Fill the glass the remainder of the way with ice, then pour your soda water over top.

Step 5: To garnish, slap a mint sprig on the table or your hand to release the oils, then add it and a lime wheel to garnish your blue curacao mojito. Cheers!

Recipe FAQs

How do you pronounce curaçao?

It’s pronounced “kur·uh·sau.” The ç is a Latin letter called the cedilla that’s used in many languages including French, Italian, and Spanish.

Why is blue curaçao blue?

Unlike an Empress gin cocktail which uses the anthocyanins in butterfly pea flower powder for its natural color changing characteristics, blue curaçao is colored with artificial colors. You can buy curaçao in other colors if you want to make a green mojito or red mojito to go with the blue!

What other blue curaçao cocktails can I make?

You can turn any cocktail that uses orange liqueur into a blue curaçao cocktail, but the blue curaçao will produce the best blue color in clear cocktails. Try a blue margarita next!

Check out other summer cocktails from the Ugly Duckling Bakery archives like:

Love cocktails and want to explore more? Read all about classic cocktails and bartender basics or join this year’s 52 weeks of cocktails challenge!

Love this recipe? Please leave a 5-heart 💜💜💜💜💜 rating in the recipe card below. Let me know how much you loved it, or any problems you had, in the comments section further down.

Recipe

Blue Mojito

5 from 1 vote
Category: Drinks
Cuisine: Unspecified
Prep Time: 5 minutes
Total Time: 5 minutes
Servings: 1
Calories: 259kcal
The Blue Mojito is a stunning twist on a classic cocktail. Blue curaçao gives this cocktail a striking blue color that will have you dreaming of crystal-clear waters and sandy beaches.
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Equipment

  • 1 Cocktail shaker

Ingredients

  • 10 mint leaves plus a mint sprig for garnish
  • 2 ounces white or silver rum
  • 1 ounce blue curaçao
  • ¾ ounce lime juice
  • ½ ounce simple syrup or light agave
  • club soda or soda water to top
  • lime wheel for garnish

Instructions

  • Fill a highball or other tall glass halfway with crushed or cubed ice.
  • Add the fresh mint leaves to your cocktail shaker. Use a muddler or the back of a spoon to press down three or four times gently muddle the mint until you can smell the mint. Do not over-muddle or it will taste bitter.
    10 mint leaves
  • Add the rum, blue curaçao, lime juice, and syrup to your shaker with an ice cube or two, then double strain into your highball glass.
    2 ounces white or silver rum, 1 ounce blue curaçao, ¾ ounce lime juice, ½ ounce simple syrup or light agave
  • Fill the glass the remainder of the way with ice, then pour your soda water over top.
    club soda or soda water
  • Slap a mint sprig on the table to release the oils, then add it and a lime wheel for garnish.
    lime wheel

Notes

For this blue mojito recipe, the mint is muddled gently in your cocktail shaker and then strained. Muddling gently and then straining prevents releasing the bitter oils and keeps you from getting mint bits in your teeth!
Crushed ice and small ice cubes are best in this blue curacao mojito and other highball cocktails because the ice melts quickly for a cocktail that’s chilly and refreshing.

Nutrition

Calories: 259kcal | Carbohydrates: 21g | Protein: 0.5g | Fat: 0.2g | Saturated Fat: 0.02g | Polyunsaturated Fat: 0.1g | Sodium: 5mg | Potassium: 83mg | Fiber: 1g | Sugar: 15g | Vitamin A: 435IU | Vitamin C: 12mg | Calcium: 27mg | Iron: 1mg
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