- 2 × egg white
- 100 ml water
- 200 ml lemon juice, freshly squeezed
- 200 ml blackberry syrup
- 4 × sprig(s) of thyme
Combine the blackberry syrup, water and thyme sprigs in a pot, briefly bring to the boil and then allow to cool. Pour this mixture, along with the lemon juice, through the iSi funnel & sieve directly into the 0.5 L iSi Whipper. Very lightly whip the egg whites and add into the 0.5 L iSi Whipper too. Screw on 1 iSi cream charger and shake vigorously. Refrigerate for at least 6 hours.
Per drink, combine 4 cl gin, 2 cl freshly squeezed lemon juice, 1 cl sugar syrup and 1 cl lime juice and shake vigorously with 4-5 ice cubes. Strain through a fine sieve into a chilled martini glass and top off with the blackberry thyme espuma.