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Home » Recipe Index » Drinks Recipes

Rosemary Grapefruit Gin Cocktail

Updated: Jan 24, 2026 | Author: Georgie Clegg · This post may contain affiliate links

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grapefruit gin cocktail pinterest graphic

Grapefruit Gin Cocktail for the win! These cocktails are fast and fresh, beautifully balanced with a hint of rosemary and honey. Fall in a glass, these cocktails are perfect for weekend entertaining this fall! 

grapefruit gin cocktail in clear glass with blue rim garnished with rosemary and grapefruit

Where are my gin lovers out there!?

I absolutely love gin and tonics, especially in the summertime with fresh lemon, or basil and cucumber! I've always seen gin and tonics as a summer cocktail, until the other month when I came up with this gorgeous rosemary grapefruit gin and tonic with honey simple syrup!

I really want to create some gorgeous fall and winter cocktails that accentuated some beautiful fall flavours! Even though technically grapefruits aren't in season until about October, I can usually find that grapefruit is available all year round.

To bring a little bit of fall comfort to this recipe, I made the most gorgeous honey and rosemary simple syrup! The result - a beautifully balanced cocktail with just a hint of herbs and honey! It makes you want to just curl up with a good book in front of the fire!

For a cold cocktail, it is so cozy and warming, perfect for a signature fall drink for dinner parties! This post is to remind you, that cocktails are not just for summer!

two grapefruit gin cocktail glasses on white marble board

***Want to PIN this recipe for later? Click HERE to save the recipe to your favourite Cocktail Board on Pinterest. ***

How to Whip Up a Grapefruit Gin Cocktail

Honey Simple Syrup

THIS! This is everything! I can't believe I've never made a honey syrup before! I guess you can still call it a simple syrup because I'm still combing a sugar and a water? But this is the thing that makes this grapefruit gin cocktail next level good!

The syrup is really easy to make - I combined equal parts water to honey with 1 sprig of fresh rosemary. The rosemary brings yet another fresh element to this cocktail, and I promise you, it won't be overpowering!

Let's Get to the Grapefruit Juice

Fresh is best! I squeezed 2 large pink grapefruits to yield around 4oz of grapefruit juice to make two cocktails. If you can't find fresh grapefruits, store-bought will do but with a slightly different taste.

hand reaching out to grab a grapefruit gin cocktail

What is the best gin?

Oh have I tried and tested this! Using good quality gin is so important for a good gin and tonic recipe! Here are some of my favourite;

  • Bombay Sapphire
  • Plymouth Gin
  • Hendricks (great mostly with cucumber)
  • Four Pillars Gin - an Australian gin company in Victoria. 100% my favourite

My go to gin is usually Bombay Sapphire though. It's pretty affordable and tastes great with a lot of different flavour combinations.

Best Tonic Water

Hands down the best tonic water you should use in Gin and Tonic's is Fever Tree. This is my all time favourite gin. Gin is ¾ of your drink so it's worth investing in good quality gin.

The rest of the cocktail is very simple! Combine the ingredients, drink and enjoy! You can either use tonic water or soda, depending on your own likes. I love using tonic water to resemble more of a gin and tonic, but it is totally up to your own taste buds!

Enjoy, and do you have a favourite fall cocktail combination?

g x 

Watch how to make it here!
overhear of two grapefruit gin cocktails

📖 Recipe

hand reaching out to grab a grapefruit gin cocktail

Grapefruit Gin Cocktail

Georgie Clegg
Grapefruit Gin Cocktail for the win! These cocktails are fast and fresh, beautifully balanced with a hint of rosemary and honey. Fall in a glass, these cocktails are perfect for weekend entertaining this fall! 
5 from 6 votes
Print Recipe Pin Recipe
Prep Time 5 minutes mins
Cook Time 10 minutes mins
Total Time 15 minutes mins
Course Cocktail
Cuisine American
Servings 1 cocktail
Calories 435 kcal

Ingredients
 
 

Honey Simple Syrup

  • ¼ cup honey
  • ¼ cup water
  • 1 sprig rosemary

Grapefruit Gin Cocktail

  • 2 oz pink grapefruit juice fresh squeezed
  • 1 oz honey simple syrup
  • 1 oz gin use good quality gin, 1-2 oz, taste dependent
  • 4 oz tonic or soda or extra to top up
  • ice
  • sprig of rosemary to garnish
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Instructions
 

Honey Simple Syrup

  • Combine ingredients in a small saucepan and bring to a simmer until the sugar has dissolved. 
  • Let it sit for 5 minutes to let the flavours infuse. 

Grapefruit Gin Cocktail

  • Combine all the ingredients in a 10oz glass, top with ice and serve. 

Notes

Nutrition information may differ depending on the amount and type of ingredients you use. 

Nutrition

Calories: 435kcalCarbohydrates: 99gSodium: 32mgPotassium: 135mgSugar: 99gVitamin C: 15.3mgIron: 0.6mg
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front view grapefruit gin cocktail

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Comments

  1. Caroline @ Pinch Me, I'm Eating! says

    October 08, 2018 at 8:51 am

    5 stars
    I love grapefruit and rosemary together! Sounds delicious!

    Reply
    • Georgie says

      October 08, 2018 at 9:38 am

      thanks Caroline! the combination is so flavoursome and so cozy together!

      Reply
  2. Lauren Grant | Zestful Kitchen says

    September 19, 2018 at 10:19 am

    Georgie! This looks and sounds so refreshing, yum!!

    Reply
    • Georgie says

      September 19, 2018 at 11:01 am

      thanks Lauren 🙂 it's my new favourite I think!! you can't go wrong with grapefruit and honey!

      Reply
  3. Jeff the Chef says

    September 16, 2018 at 7:02 pm

    Sounds great! I've been looking for a good grapefruit cocktail.

    Reply
    • Georgie says

      September 17, 2018 at 10:38 am

      so happy I could help Jeff! the honey rosemary simple syrup is an absolute game changer!

      Reply
  4. Chris Collins says

    September 15, 2018 at 11:59 am

    5 stars
    Rosemary, gin and grapefruit sounds so yummy! Can't wait to try this!!

    Reply
    • Georgie says

      September 17, 2018 at 10:39 am

      thanks Chris it is absolutely gorgeous for the fall weather!

      Reply
  5. Natalie says

    September 15, 2018 at 11:42 am

    5 stars
    I love gin based cocktails! Looks so delicious and refreshing - perfect for hosting too!

    Reply
    • Georgie says

      September 17, 2018 at 10:39 am

      gin-based cocktails are the best right!?

      Reply
  6. Claudia Lamascolo says

    September 15, 2018 at 11:04 am

    5 stars
    this looks like a fun and refreshing drink .. I think grapefruit goes perfectly with gin!

    Reply
    • Georgie says

      September 17, 2018 at 10:39 am

      it really does pair beautifully, especially with the subtle hint of rosemary and honey! just gorgeous!

      Reply
  7. Danielle says

    September 15, 2018 at 10:14 am

    5 stars
    Wow, what a unique cocktail. I bet the rosemary and grapefruit add so much flavour!

    Reply
    • Georgie says

      September 17, 2018 at 10:40 am

      it does!! and the addition of the honey too, it's so subtle and simple but really makes a huge difference to the flavour!

      Reply
  8. Alina | Cooking Journey Blog says

    September 15, 2018 at 9:27 am

    5 stars
    Love that it is sweetened with honey. Looks like a fresh and healthy boozy drink for a weekend!

    Reply
    • Georgie says

      September 17, 2018 at 10:40 am

      it totally is! i can't believe a cocktail can be so refreshing but cozy at the same time!

      Reply

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