The perfect ratio for a whiskey sour is 3 parts whiskey, 2 parts lemon juice, and 1 part simple syrup.
Using fresh lemon juice is key to achieving the perfect balance of sweet and sour.
Simple syrup can be made by combining equal parts sugar and water and heating until the sugar dissolves.
Shaking the cocktail with ice is important to achieve the right texture and temperature. Garnishing with a cherry and orange slice adds a nice touch to the cocktail.
Experimenting with different types of whiskey can lead to unique and delicious variations of the classic whiskey sour.
The 3-2-1 ratio can also be applied to other sour cocktails, such as a margarita or daiquiri.