For almost as long as there have been cocktails, there have been eggs in cocktails—and not just the egg whites that add a creamy, foamy, textured top to shaken drinks like the Pisco Sour. The ...

This cocktail is a marvelous example of how adding egg whites alters the texture of a drink and makes them very crushable. “This is the kind of drink that could get me into trouble,” Raymond says. “It ...