Rhubarb & Rosemary Gin Sour
50ml Chase Rhubarb & Bramley Apple Gin
25ml Lemon juice
Sprig of rosemary
10ml Sugar syrup
1 Fresh egg white
Shake all ingredients except the ice for 10-15 seconds. Then add ice and shake again (this will ensure a nice foam).
Double strain into a coupe glass, garnish with a small sprig of rosemary and a rhubarb ribbon if available.