Shake up these frothy, low-calorie drinks as a mind-blowing way to elevate your cocktails. While an egg white may seem an odd cocktail ingredient, when mixed correctly it adds a silky texture unachievable with another ingredient. Unlike other drinks made with milk or whole eggs, egg-white cocktails remain light and crisp. They make fresh additions to spring soirées or weekend brunch. But be sure to shake correctly. The secret to the extra layer of froth is the reverse dry shake, which yields a foamy, mousse-like look and feel.