While a similar product can be made by macerating whole plums in sugar to extract a syrup, Girl Meets Dirt founder Audra Lawlor likes the harmony of using the "waste" from her Plum Paste (Plumbrillo) for this tangy cocktail mixer. Add a splash of the shrub to a glass of seltzer, or shake over ice with tequila and lime.
- 3 cups strained Italian plum juice (reserved from Plumbrillo), divided
- 3¼ cups sugar
- 1 cup white wine vinegar