Backstabber

Select and pre-chill an Old Fashioned glass.

Prepare a garnish of root ginger slice or a piece of crystallized ginger.

Shake the gin, freshly squeezed lime juice, ginger syrup, Angostura Aromatic Bitters, and egg white (or chosen alternative) with ice.

Strain the mixture into the ice-filled glass, preferably over a large cube or chunk of block ice.