Rosemary Grapefruit Gin & Tonic

Ingredients:

• 2 oz Waterloo Gin, No. 9 Gin
• 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.