If you're a fan of Whiskey Sour, you'll definitely want to try Boston Sour. This delicious variation on the classic incorporates an egg white giving it a beautiful frothy foam topping.
Any good bartender will tell you that the quality of your ingredients is critical when making an excellent cocktail. A high-quality whiskey is essential to create a delicious Boston sour. For this recipe, we prefer to use mid-priced bourbon whiskey.
You can also substitute simple syrup if you do not have maple syrup at hand.