The Garden Sour is a modern cocktail that was created in 2017 by Giffard, a brand of liqueurs and syrups. The recipe was released alongside the premiere of their Rhubarbe Liqueur and was meant to highlight its unique spring-inspired flavor by pairing it with smoky mezcal, citrus, celery, and soda water.
Add mezcal, rhubarb liqueur, lemon juice, simple syrup, and celery bitters to shaker.
Fill shaker with cubed ice.
Shake for 10-20 seconds.
Add fresh cracked ice to a highball glass.
Using a Hawthorne strainer, strain into highball glass.
Top with soda water.
Using large tweezers or small tongs, position rhubarb ribbon around the outside of the ice in the glass.