The clean, tart, bracing aspect of rhubarb makes it perfect in a cocktail. It's bright nature pair particularly well with gin. But rhubarb would work where ever you might use citrus in a cocktail.

The clean, tart, bracing aspect of rhubarb makes it perfect in a cocktail. It's bright nature pair particularly well with gin. But rhubarb would work where ever you might use citrus in a cocktail.
Pour bitters into a Collins style glass, swirl to coat and discard the excess. Fill the glass 1/2 way with ice cubes. Combine gin, tonic, rhubrab juice and simple syrup. Stir. Garnish with rhubarb and or lemon verbena.
serves 1
Source:Adapted from Brad McDonald's Rhubarb Haze