The Peruvian independence holiday (fiestas patrias) has come and gone, but if you are still in the mood to celebrate, try this pisco and ginger ale cocktail known as a chilcano de pisco (not to be confused with the fish soup known as chilcano de pescado). Slightly less well known than the pisco sour, it's my husband's favorite drink, and we always get raves when we make them for friends. ("This is so good! What is the liquor in this drink called again?? 'Peace corps'??") Chilcanos are surprisingly good, for such a simple drink - the lime, pisco, and ginger ale flavors blend into something new and better. Great on a hot summer evening.