Grapefruit Simple Syrup: A Zesty Citrus Twist for Drinks and Desserts
Grapefruit simple syrup is the unsung hero of citrus-based flavorings. With its tart, slightly bitter profile balanced by sweetness, this syrup adds a zesty brightness to everything it touches—from margaritas and mojitos to flavored sodas and salad dressings. Making it at home not only ensures a fresher, cleaner taste but also gives you control over sweetness and strength.
Simple to prepare and even easier to use, this grapefruit syrup makes an excellent addition to your kitchen. It’s perfect for elevating your drink game, adding a gourmet twist to desserts, or experimenting with fun and unexpected flavors in your cooking.

Ingredients
White Sugar
Sweetens the mixture and balances out the tartness of the grapefruit, helping to form the base syrup.
Filtered Water
Combines with the sugar and grapefruit to create a smooth, pourable liquid that carries the citrus flavor.
Grapefruit
Adds a vibrant citrusy zing with a hint of bitterness for a bold and refreshing syrup.
Lemon Juice (Optional)
Acts as a mild preservative and adds an extra pop of brightness to complement the grapefruit.
Directions
- Start by thoroughly washing the grapefruit peel to remove any wax or residue. Then dice the whole fruit, peel included, into 2-inch pieces. The peel adds depth of flavor and aroma, enhancing the syrup’s complexity.
- In a medium saucepan over medium heat, combine the sugar, water, and diced grapefruit. Stir gently until the sugar fully dissolves into the mixture.
- Allow the mixture to simmer gently for about 15 minutes. This step helps the grapefruit flavor infuse into the syrup while thickening it slightly.
- Once finished, remove the saucepan from the heat and allow the syrup to cool to room temperature.
- Strain the mixture through a fine mesh strainer to remove the fruit solids and zest. Press the fruit gently with the back of a spoon to extract as much flavor as possible.
- Transfer the finished syrup to a clean, airtight container and refrigerate. The syrup will stay fresh for up to three weeks.
Tips and Tricks for the Best Grapefruit Syrup
- Use Ruby Red Grapefruit – For a sweeter and slightly less bitter syrup, try using ruby red grapefruit instead of white grapefruit. The flavor is mellow and the color is stunning.
- Add a Touch of Herb – Toss in a sprig of rosemary, basil, or thyme during the simmering stage for a sophisticated twist. Just be sure to remove the herbs before straining.
- Experiment with Spices – A pinch of ground ginger, cinnamon, or star anise can add a unique warmth and depth to your syrup.
- Control the Sweetness – If you prefer a more tart syrup, reduce the sugar slightly. Just keep in mind that sugar also acts as a preservative.
- Save the Leftover Fruit – The simmered grapefruit chunks can be used as a flavorful topping for toast, yogurt, or even added to smoothies. No waste, all flavor!
Ways to Use Grapefruit Syrup
The best thing about this syrup is how incredibly flexible it is. Here are just a few of our favorite ways to enjoy it:
- In Margaritas – Swap out triple sec for grapefruit syrup for a bright, citrus-forward cocktail that’s perfect year-round.
- Sparkling Sodas – Mix with sparkling water or club soda for a refreshing, naturally flavored soda alternative.
- Mocktails – Combine with lemonade or iced tea for a non-alcoholic drink with gourmet vibes.
- Dessert Drizzle – Drizzle over lemon pound cake, vanilla ice cream, or cheesecake for a tangy finishing touch.
- Salad Dressings – Mix with olive oil and vinegar for a light, citrusy vinaigrette.
- Frozen Treats – Use the syrup to flavor homemade popsicles or mix it into sorbet bases.
Brighten Up Any Recipe
What makes grapefruit simple syrup so special is its ability to add brightness and zest without overpowering other ingredients. It balances beautifully with herbaceous, floral, or spicy flavors, making it ideal for cocktails and mocktails, yet it’s versatile enough to sneak into baked goods or sauces for an unexpected citrus kick.
And don’t worry about it going to waste. With a shelf life of up to three weeks in the fridge, you’ll have plenty of time to experiment with it in both sweet and savory recipes. It’s a secret weapon for any home cook or mixologist who loves bold flavor and clean ingredients.
Your turn!
Homemade grapefruit simple syrup is easy to make and endlessly adaptable. With only a few basic ingredients and 20 minutes of time, you can transform a humble citrus fruit into a flavor-packed syrup that adds brightness, zest, and sophistication to your favorite dishes and drinks. Whether you’re mixing cocktails, creating mocktails, or drizzling it over dessert, this syrup is sure to become a kitchen staple you reach for again and again.
I prefer to store my simple syrups in mason jars, and use lids like pour lids from Mason Jar Lifestyle. Alternatively, I also like to use these bottles which are aesthetic!
Check Out My Cookbook, Simple Syrups From Scratch!

Simple Syrups From Scratch—your go-to cookbook with 50+ simple syrup recipes. In the world of cooking and baking, simple syrups are a secret ingredient that can elevate your beverages and desserts with just a splash.
The main way I use simple syrups is in coffee, but there are so many other uses: Hot chocolate, Teas, Lemonades, Sparkling water or infused water, Cocktails or mocktails, Drizzle over pancakes or waffles, Add to overnight oats, Brush over cakes or cupcakes to add moisture or sweetness, Use syrups in frosting or glazes, Drizzle over ice cream or yogurt, Add to smoothies or milkshakes, Make salad dressings, Homemade popsicles and so much more!
Check Out My Cookbook, From Scratch!
I’m excited to share my cookbook with you, created with sustainability and flavor in mind! From Scratch is packed with delicious, eco-conscious recipes designed to nourish both you and the planet. Every dish is carefully crafted to use fresh, local ingredients, and focuses on minimizing waste while maximizing taste.
From wholesome breakfasts to hearty dinners, my cookbook offers a variety of plant-based meals that are easy to prepare and full of nutrients. Whether you’re looking to reduce your carbon footprint or simply enjoy meals that are better for you and the Earth, this cookbook is your guide to eating in a way that’s both kind to the planet and satisfying to your taste buds. You can grab your copy here:

Check Out The Pantry Labels

In 2024, I released a set of Pantry Labels with recipes that are dishwasher-safe and fit the lids of mason jars perfectly.
Each labels has the recipe to refill the dry mix jar, as well as the recipe to make the item if applicable.

Grapefruit Simple Syrup
Ingredients
- 1 cup white sugar
- 1 cup filtered water
- 1 large grapefruit
Instructions
- Start by thoroughly washing the grapefruit peel to remove any wax or residue. Then dice the whole fruit, peel included, into 2-inch pieces. The peel adds depth of flavor and aroma, enhancing the syrup’s complexity.
- In a medium saucepan over medium heat, combine the sugar, water, and diced grapefruit. Stir gently until the sugar fully dissolves into the mixture.
- Allow the mixture to simmer gently for about 15 minutes. This step helps the grapefruit flavor infuse into the syrup while thickening it slightly.
- Once finished, remove the saucepan from the heat and allow the syrup to cool to room temperature.
- Strain the mixture through a fine mesh strainer to remove the fruit solids and zest. Press the fruit gently with the back of a spoon to extract as much flavor as possible.
- Transfer the finished syrup to a clean, airtight container and refrigerate. The syrup will stay fresh for up to three weeks.
