To make the honey syrup, place honey and water into the Thermomix bowl. Warm 5 min/37°C/speed 2.
Pour into a jar until use.
To make the cocktail, fill a cocktail shaker with ice. Pour in the honey syrup, lemon juice and gin. Securely fasten the lid and shake until the mixture is very cold, about 30 seconds.
Strain the drink into a martini glass. Twist the lemon peel over the cocktail to release some of its oils, then drop it in. Enjoy cold.