Are you familiar with pisco, Peru's national spirit made from grapes? Mixed with simple syrup, lemon juice, bitters and egg white, it adds a unique component to a classic sour cocktail. But doesn't it sound great as a sorbet?The Daily Meal featured this recipe for pisco sour sorbet from SUSHISAMBA restaurant which features a blend of Japanese, Brazilian and Peruvian cuisine. It's a simple recipe (no need for an ice cream maker!) and a fresh idea for a sweet treat for these last days of summer.