Place 5 bar spoons of peach puree into a shaker
Pour in 0.5 oz of sugar syrup, 0.5 oz of dry vermouth and 2 oz of gin
Add 0.15 oz of orange flower water and 3 dashes of rhubarb bitters
Fill the shaker with ice cubes and shake
Finely strain into a chilled cocktail glass
Pour in 0.15 oz of club soda and squeeze lemon zest over the cocktail