Created in the 19th century by British sailors as a lemon preserve, the whiskey sour became a staple in American bars with the arrival of bourbon. Its alcohol-free whisky bourbon version maintains the perfect balance of acidity, sweetness, and woody notes.

The egg white in a Virgin Whisky Sour adds texture and creates a light, creamy foam, which is one of the classic characteristics of the traditional cocktail. It also adds a pleasing visual aspect. While the egg white doesn't add flavor, it helps balance the acidic flavors of the lemon and gives the drink a soft, foamy consistency.You can omit the egg if you prefer a egg-free version, especially if you have dietary concerns (allergies, vegetarianism, etc.). However, the egg plays a key role in the texture. You can use vegan alternatives like aquafaba (the liquid from canned chickpeas) to recreate the foamy effect without the egg.

Yes, there are several variations you can try to personalize your Virgin Whisky Sour:

- Citrus Virgin Whisky Sour: Substitute orange juice for some of the lemon for a sweeter note.
- Raspberry Virgin Whisky Sour: Add a little raspberry puree for a fruity and sweet touch.
- Spiced Virgin Whiskey Sour: Add a pinch of cinnamon or grated ginger for a little kick.

The main difference between whisky and bourbon lies in the ingredients and the region of production. Bourbon is a type of whisky that must be made primarily from corn (at least 51%) and aged in new oak barrels, resulting in sweeter, vanilla flavors. Whisky (outside the United States) can be made from a variety of grains, including rye, barley, or wheat, and can have more varied and sometimes spicier flavors.

The term "sour" refers to the mixture of alcohol, acid (usually lemon juice), and sugar in a cocktail. "Sour" indicates that the cocktail is both sour and sweet, and it is part of the larger family of "sour" cocktails, which also includes classics like the Whisky Sour, Amaretto Sour and the Pisco Sour.