Homemade Rosemary Simple Syrup Recipe

I love using this rosemary-infused simple syrup to brighten mocktails and herbal teas. It also adds a lovely herbaceous note to lemon or vanilla cakes, glazes, and frostings. The flavor is subtly savory and aromatic, so a little goes a long way to enhance both sweet and savory recipes.

This simple syrup blends sweetness with the fresh, pine-like character of rosemary. Use it to sweeten drinks, to macerate fruit, or brush on cakes and pastries for a fragrant finish. It pairs especially well with citrus, stone fruits, and berries, and the syrup’s savory edge makes it a surprising and delightful addition to cocktails or mocktails.

If you want to add a savory bite to fruity mocktails, this rosemary syrup is an ideal choice. It works well alongside other infused syrups—try it where jalapeño, lavender, or floral syrups are called for to add complexity. Fruit and rosemary are a classic match; for example, grapefruit, lemon, and berry-based drinks all benefit from a splash of this infusion.

• Non-alcoholic mimosa mocktail
• Prosecco-style non-alcoholic drink
• Blackberry lemonade
• Non-alcoholic gin and tonic
• Lavender lemonade

For a warm, comforting drink, stir a tablespoon into a large glass of warm milk to create a rosemary steamer. You can also mix it into yogurt, drizzle over roasted fruit, or use it as a base for a quick vinaigrette by combining with olive oil, vinegar, and a pinch of salt.

Can I use any sugar?

Yes—this basic infusion works with many types of sugar. Cane sugar is the most common, but raw sugar, coconut sugar, date sugar, and other sweeteners can be used. Each choice subtly changes the flavor: brown sugar or turbinado adds a hint of caramel, while lighter sugars keep the flavor bright. If you prefer a warmer, richer syrup, substitute brown sugar using the same proportions.

For creative variations, combine rosemary with other floral or herbal syrups, or add a strip of citrus peel while simmering for extra brightness. A small amount of whole spices (such as a star anise or a cinnamon stick) can also introduce interesting depth—use sparingly to avoid overpowering the rosemary.

Does it matter what kind of water I use?

No—tap or filtered water both work fine for making this syrup. Avoid using carbonated water such as club soda or seltzer when preparing the syrup itself; still water is required for dissolving the sugar and extracting the rosemary oils.

How to make it

• Add 1 cup water and 1 cup sugar to a saucepan and whisk until combined.
• Add 5 sprigs of fresh rosemary to the pan.
• Bring the mixture to a gentle boil, whisking occasionally. Remove from heat and let the rosemary steep for 25 minutes to infuse the syrup.
• Strain the syrup through a fine-mesh strainer into a clean glass bottle or jar, pressing the herbs gently to extract more flavor.

Recipe: Rosemary Simple Syrup

Storage and shelf life

Keep the syrup in a sealed container at room temperature for quick use, or refrigerate for longer storage. In the fridge it will stay fresh for about three to four weeks. Always check for signs of spoilage—off odors, cloudiness, or fermentation—and discard if any develop.

Ways to use rosemary simple syrup

• Add to iced tea, lemonade, or sparkling water for an herbal lift.
• Sweeten hot tea or make an herbal steam with warm milk.
• Brush over cakes or pound cakes as a glaze to keep them moist and fragrant.
• Macreate berries or stone fruit for desserts.
• Use a small amount in marinades or dressings to balance acidity with a hint of sweetness and herb.

Other rosemary recipes to explore

Try incorporating rosemary into savory bakes, roasted vegetable dishes, or as a finishing touch on meats. The same aromatic herb complements both sweet syrups and savory recipes seamlessly, making it a versatile ingredient to keep on hand.