Concord Grape Shrub
3 cups Concord grapes, stemmed and rinsed
½ cup sugar
1½ cups apple cider vinegar
Combine the grapes and sugar in a large, clean jar. Use a wooden spoon to gently muddle the mixture. Seal the jar and refrigerate for 24 hours.
Strain the mixture through a fine-mesh strainer, into a separate large, clean jar, pressing down firmly to extract all the juice you can from the grapes. Discard the solids. Seal and refrigerate for one day.
Add the vinegar, stirring to incorporate. The shrub is ready to use, although it will mellow, and perhaps be more drinkable straight up, if you let it sit in the refrigerator for a few hours.
Serves 5 to 10 (makes 2½ cups)