How to Make It
In a blender, combine the lime juice with the sugar and mix to dissolve the sugar. Add the pisco, egg white and ice and blend at high speed until frothy. Pour into a sour glass, add a few drops of bitters and serve
The Pisco Sour, made with a Muscat-grape brandy called pisco, is the national cocktail of Peru. While pisco imports have increased dramatically over the last few years, it might still be difficult to find. If you cannot find pisco, use grappa in its place or substitute white rum or silver tequila.