How to Make a Rosemary Lemon Gin & Tonic Ingredients: 50ml of Gin 1 tsp of Lemon Juice 1 tsp of Simple Syrup 125ml of Tonic Water Ice Cubes 1 Rosemary Sprig and Opies Sliced Lemons, for garnish Method: Add all of the ingredients to a glass filled with Ice Cubes Lightly stir to combine the ingredients Garnish with a Sprig of Rosemary and Opies Sliced Lemon