Sparkling Strawberry Shrub A shrub is a vinegar-based syrup, referred to as “Drinking Vinegar”. Drinking vinegar is vinegar which is often infused with fruit juice, herbs and spices for use in mixed drinks. I was so happy to find the recipe for “Front Porch Chillin’” Sparkling Strawberry Shrub in the April/May 2018 issue of Chilled Magazine. …