Green Grape Pisco Sour (adapted from Cooking Light)
3/4 cup green grapes
2 tsp sugar
1 tsp lime zest
3 ounces pisco
1-1/2 T lime juice
1 egg white
A few dashes Boston bittahs (or other bitters)
1. Muddle the grapes, sugar, and lime zest in a cocktail shaker.
2. Add the pisco, lime juice, and egg white, and shake vigorously for 30 seconds to 1 minute.
3. Add a few ice cubes to the shaker and shake again for 30 seconds or so until very cold.
4. Strain the mixture over ice into two glasses. Top each cocktail with a dash or two of bitters.