8 seedless red grapes
1 1/2 ounces pisco, preferably Quebranta
2 ounces Riesling
1/2 ounce simple syrup
3/4 ounce fresh lemon juice
In a cocktail shaker, gently muddle the grapes until they burst. Add the remaining
ingredients and enough ice to fill a rocks glass and shake well for 20 seconds. Pour
the contents of the shaker into the rocks glass.