Rhubarb syrup is a type of [ingredient=simple-syrup simple syrup] flavored with rhubarb. Because rhubarb must be cooked to soften it enough to release flavors, simmering it in simple syrup for a brief period is the best option. To make rhubarb syrup:

  • 1/2 cup water
  • 1/2 cup sugar
  • 1 pound rhubarb, cut into 1/2" pieces
  • juice of 1/2 lemon

In a large saucepan, combine sugar, water, lemon juice, and rhubarb pieces and simmer until the rhubarb is easily pierced with a knife. Remove from heat and strain through a fine strainer, pressing on the rhubarb solids to release their juice. This can be stabilized with a few ounces of vodka.

Some popular cocktails containing Rhubarb syrup

  • Rye and Rhubarb — Rye, Zucca, Rhubarb syrup
  • Rhubarbaration — Bourbon, Zucca, Rhubarb syrup
  • Old Tart — Gin, Bianco Vermouth, Elderflower liqueur, Lemon juice, Rhubarb syrup, Mint syrup
  • Rhubarb Bittered Gimlet — Gin, Bitters, Lime juice, Rhubarb syrup
  • Summer Stalk — Rum, Amontillado Sherry, Rhubarb bitters, Lime juice, Rhubarb syrup
  • Spring Rose — Gin, Rhubarb syrup, Lime juice, Basil
  • Rhube Rye — Rye, Maurin Quina, Lavender bitters, Rhubarb syrup, Lavender, Maraschino cherry
  • Rhubarb and Roses — Bourbon, Amaro Montenegro, Rhubarb bitters, Rhubarb syrup, Rhubarb
  • Strawberry Rhubarb Pieball — Strawberry eau de vie, Soda water, Rhubarb syrup, Lemon
  • Bang Bang Gang — Gin, Dry vermouth, Gran Classico, Fernet Branca, Orange bitters, Rhubarb syrup