The Porto Sour is a twist on the classic whiskey sour, using Porto wine instead of whiskey. It is made by combining Porto wine, lemon juice, simple syrup, and egg white in a shaker with ice. The mixture is then shaken vigorously and strained into a glass. The Porto Sour has a tangy and slightly sweet flavor, with a frothy texture from the egg white. It is a sophisticated and elegant cocktail that is sure to impress.
