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A refreshing, crisp spring cocktail featuring a bright rhubarb simple syrup mixed into a classic gin and tonic with lime.

Ingredients

Scale
  • 2 cups rhubarb, chopped (roughly 4 stalks)
  • 1 cup sugar
  • 1.5 cups water
  • 4 oz gin
  • Juice of 1 lime
  • 6 oz rhubarb simple syrup
  • 10 oz tonic water
  • Lime slices, for garnish

Instructions

  1. Put chopped rhubarb, sugar, and water in a saucepan together.
  2. Heat over medium-high until it reaches a boil, then lower the heat and simmer gently for about 20 minutes until the rhubarb is very soft and liquid turns pink.
  3. Remove pan from heat and let syrup cool completely.
  4. Strain syrup through a fine-mesh sieve into a jar, pressing softly on solids to extract liquid; discard or save solids.
  5. Chill two tall highball glasses and fill each about halfway with ice.
  6. Pour 2 ounces of gin into each glass.
  7. Squeeze juice of half a lime into each glass.
  8. Add about 2 tablespoons of rhubarb simple syrup to each glass, adjust to taste.
  9. Top off each glass with chilled tonic water (approximately 5 oz) and stir gently once to blend without losing bubbles.
  10. Garnish with lime slices or wedges and serve immediately.

Notes

Use firm, tart rhubarb stalks; never use the leaves as they are toxic., Sweeten syrup after cooling if desired, or dilute with water to mellow flavor., Serve with chilled syrup, tonic, and glasses to maintain crispness., Press solids gently when straining to keep syrup clear., For lighter drink, reduce syrup or substitute tonic with club soda., Syrup can be made ahead, kept refrigerated for up to 7 days or frozen for up to 3 months., Variations include adding chopped strawberries during simmer, infusing syrup with rosemary or thyme, topping cocktail with prosecco for fizz, or omitting gin for a non-alcoholic version using rhubarb syrup and club soda or lemon-lime soda., Leftover rhubarb solids can be used as toppings for yogurt, oatmeal, or baked goods.

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