One summer evening, I was scrolling through my Instagram feed when I came across a blackberry shrub cocktail. Intrigued, I clicked through to the recipe and decided to give it a try.

Shrub cocktails are made with a shrub, which is a vinegar-based syrup. Shrubs are often made with fruit, herbs, and spices, and they add a delicious tartness to cocktails.

The blackberry shrub cocktail recipe I tried called for bourbon, ginger beer, and lime juice. I love bourbon cocktails, …