The pisco sour is the most popular cocktail in Chile, and each family has its version of this delicious classic.
In a blender we put the lemon juice, pisco, gum, ice and egg white and We process until the ice is dissolved
We serve the individual glasses, we add to each one a couple of drops of angostura (bitter)
we can keep our pisco sour in the freezer for 3 or 4 without problems