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# Rosemary Grapefruit Gin & Tonic
- URL: https://bevnews.net/rosemary-grapefruit-gin-tonic-2/
- Published: 2026-03-24T03:08:02.000Z
- Updated: 2026-03-24T03:08:02.000Z
- Author: Joel Whitaker
- Tags: cocktails

**Ingredients:**

- 2 oz [Waterloo Gin, No. 9 Gin](https://tracking.us.nylas.com/l/d79fe2f69f354f728d717bdebed5e004/3/05fce122a72eb804e2e1180c6450f6a0d5507182b33f85bb1f9521a40eb3cce6?cache%5Fbuster=1774290676&ref=bevnews.net)
- 1 oz fresh grapefruit juice
- ½ oz rosemary simple syrup
- 2 dashes Angostura bitters
- tonic water
- grapefruit slice, for garnish
- rosemary sprig, for garnish

**Method:**

To make the rosemary simple syrup, add half a cup of granulated sugar, half a cup of water, and two fresh rosemary sprigs to a small saucepan. Bring to a gentle simmer over medium heat. Stir until the sugar has dissolved. Remove from heat and let steep for ten minutes. Strain and cool to room temperature. 

Fill a highball glass with crushed ice. Add the gin, grapefruit juice, and rosemary simple syrup. Gently stir to combine. Top with tonic water and Angostura bitters. Garnish with a grapefruit slice and rosemary sprig.