Cottonmill Green cocktail recipe

Octagon Bar at Sopwell House, St Albans. Bar manager: João Chitas

• 500ml cucumber water
• 4 green jalapeños
• 20g coriander seeds
• 300g sugar
• 50ml gin (any dry gin)
• 20g citric acid

Combine all the ingredients except the citric acid in a vacuum bag and seal. Put the bag in a water bath for 30 minutes at 63°C, then transfer to ice water to cool it. Strain through a Superbag sieve.

Add the citric acid and stir, before vacuum-packing in a 500ml bag. Serve over ice.