Key Lime Mojito

Who doesn’t love a mojito? A cocktail that screams summertime sipping! And what better way to put those in-season Florida key limes to great use? Kick back and enjoy the sunshine with this EASY SQUEEZY icey cooler!

Angle view of Key Lime Mojitos in glasses with mint leaves ice cubes and lime slice

You know me… I adore mixing things up in the kitchen. But I’ll be the first to admit, sometimes even I get lulled into too much of a routine.

When I find myself longing for a cocktail, I tend to reach for my usual elixir.

But when contemplating fun things to do with key limes (that aren’t pie!) for my summertime three part series, I had an aha moment! They’d be perfect in a refreshing cocktail – and a mojito is the perfect drink to make them shine!

So this concoction took me out of my rut, and highlighted a simple new ingredient to add to the cocktail quiver. (The other few – rum, lime, sugar and sparkling water – I always have on hand.) Even with a minimally stocked liquor cabinet, and just a few simple ingredients, you can have yourself a finely crafted cocktail with a few quick flicks of the wrist.

So what are you waiting for? Shake it up!

Can I Make This Mojito Ahead?

This drink is best shaken and poured to serve. But it takes just a few minutes to make! Though feel free to squeeze the lime juice ahead if you prefer.

Angle view of Key Lime Mojitos in glasses with mint leaves ice cubes and lime slice

Are There Any Substitutions for this Key Lime Cocktail?

If you don’t have key limes on hand, you can always use regular limes in their place.

Past that, not really! However, there are some non-traditional pour-ins you can also add to the mix if you’re feeling extra zesty…

  • A splash of Aperol
  • A splash of St. Germaine
  • Muddling additional fruit, such as raspberries or strawberries or watermelon, with the sugar and mint.

Key Lime Mojitos in glasses with mint leaves ice cubes and lime slice

Quick & Easy Dinner Party

Key Lime Mojito

Prep Time5 mins
Servings: 2 cocktails


  • 10-12 fresh mint leaves
  • 4 ounces fresh squeezed key lime juice
  • 1 ½ - 2 tablespoons fine sugar
  • 3 ounces white rum
  • 8 ounces sparkling water


  • In a cocktail shaker or jar with a lid, place the mint, lime and sugar (depending on how sweet you like your drinks use more or less). Using a muddler or large spoon, smash it all together until the sugar is dissolved. Pour in the rum.
  • Add a handful of ice cubes, place the lid on the shaker or jar and shake vigorously.
  • Have ready two low-ball glasses filled with ice and some fresh mint sprigs. Strain the juice and rum mixture into the glasses equally and top each with equal amounts of sparkling water.

Tips & Tricks

If you don't have key limes, you can always substitute the juice of regular limes.

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