Ingredients (makes one glass; quantities can be scaled up as needed)
45ml Greendale Gin
1 Lemon, to give 15ml of juice, plus a strip of peel to garnish
7 ½ ml Sugar Syrup*
Champagne, to finish
Ice cubes

*Sugar syrup features in a lot of cocktails, but it’s not something you need to buy especially - it’s very easy to make your own. All you need is caster sugar and water, in a 2:1 ratio, and a sterilised glass bottle to store it in (sterilise by washing the bottle in hot soapy water, rinsing it and then putting it in the oven at 160°C (Gas Mark 3) for 15 minutes). To make 400ml of sugar syrup, put 300g of caster sugar into a pan, add 150ml water and stir over a low heat. When the sugar has completely dissolved, pour it into the bottle and seal. Store in the fridge until needed.