Ingredients

  • 4 cups 100-percent Concord grape juice
  • One 8-inch sprig fresh rosemary
  • 1 1/2 -inch square cube crystallized ginger
  • 1 teaspoon aged balsamic vinegar
  • One 750 ml bottle rose champagne, chilled
  • Orange bitters
  • Concord grapes, halved, for serving
  • Orange rinds, for serving

Method

  • For the Concord grape syrup: Combine the grape juice, rosemary and ginger in a 2-quart saucepan.
  • Reduce the mixture for 1 hour over medium-low heat.
  • When the mixture has reduced by half, add the balsamic and continue cooking until the mixture has reduced by half again, about 10 minutes.
  • Cool for 30 minutes.
  • Strain and store in an airtight container in the refrigerator for up to a week.
  • For the cocktails: Add 1 ounce of the grape syrup to each champagne flute.
  • Top with 4 ounces champagne and 2 to 3 dashes of bitters.
  • Top each glass with a skewered grape half and orange rind piece.