Grapefruit Rum Cocktail

5 from 7 votes

Jul 24, 2020

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This easy Grapefruit Rum Cocktail is made with rum and grapefruit juice, fresh mint leaves, club soda and more! It’s a cool and refreshing cocktail recipe, bursting with delicious tropical flavors and beauty.

above shot of a drinking glass filled with a grapefruit rum cocktail, and garnished with mint leaves and grapefruit slices

A Refreshing Summer Cocktail Recipe

Why settle for a basic mojito when you can enjoy this minty, ruby red grapefruit cocktail instead? With its vibrant pinkish-orange hue and refreshing citrus flavors, it’s the ultimate summer drink. Served with juicy grapefruit slices and crushed ice, this cocktail is as stunning as it is cooling.

Made with just seven simple ingredients, this boozy treat is quick and easy to whip up. Perfect for parties or a relaxing evening on your front porch, you’ll fall in love with the summery vibes of this rum cocktail!

What’s in this Cocktail?

Mint Leaves and granulated sugar – Muddling the mint with sugar helps release the mint’s natural oils, intensifying its refreshing flavor and infusing the cocktail with a subtle sweetness. If you don’t have a muddler, the back of a wooden spoon works just as well.
Red Grapefruit Juice – You could also use regular grapefruit juice and adjust the sweetness as needed.
White Malibu Rum – You can use regular white rum if you prefer a less sweet drink or swap with vodka and make it a Greyhound instead!
Grenadine – If you want to give your cocktail even more color and sweetness, add a splash of grenadine. Pomegranate juice is a good substitute.
Club Soda – Adds fizz and balances the sweetness. Sparkling water or tonic water are good alternatives.
Grapefruit Slices – Fresh grapefruit slices make a gorgeous garnish for your drink.

How to Make a Grapefruit Rum Cocktail

Making this refreshing rum cocktail is super simple, with just a few ingredients like rum and grapefruit juice, and you’ll have a crisp, citrusy drink ready in no time. Follow these easy steps to mix it all up!

Muddle Mint & Sugar: In the bottom of a large pitcher, muddle together the mint leaves and sugar.
Add Juice & Rum: Stir in the grapefruit juice and the rum. Cover and refrigerate until ready to serve.
Assemble: Fill cocktail glasses with crushed ice and add the prepared rum drink to each glass.
Garnish & Serve: Top cocktails with a splash of club soda and a splash of grenadine, if desired. Garnish with grapefruit slices and enjoy!

Tips for the Best Cocktail

Use White Malibu Rum: This drink makes even the cheapest rum taste good! But, if you opt for a tropical white rum, your cocktail will be even more delicious.
Add Grenadine to Sweeten: Grenadine will give your cocktail an extra splash of color and sweetness. If you prefer more bitter drinks, you don’t have to add any.
Half the Recipe for Smaller Yield: This recipe makes about 8 cocktails. Divide the listed portions in half if you’re making drinks for a few.
Try a Different Spirit: This cocktail would also taste great with vodka, gin, or tequila.

What To Serve With Cocktails

This grapefruit cocktail is a perfect match for seafood! Try serving it with my quick and easy garlic butter scallops or as a starter before baked lobster tails. If you’re in the mood for a savory snack, pair it with my baked shrimp dip—it’s delicious with veggies and chips. For something heartier, these juicy balsamic marinated chicken breasts are a great option to round out the meal!

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above shot of a drinking glass filled with a grapefruit rum cocktail, and garnished with mint leaves and grapefruit slices

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5 from 7 votes