Pisco Sour is an alcoholic drink that has been part to the Peruvian cuisine for centuries. It's name is related to the Pisco region (Southwest of Peru), and the cocktail term sour comes from the sour citrus tones and sweetener elements that this drink has. Pisco is grape brandy produced all along the coast of the Andean region. The white eggs provide texture and a light foam that is certain to charm the most sophisticated taste. Easy and quick Peruvian Recipes. Visit andeanrecipes.com/recipes for more dishes.