First, add all the ingredients to your cocktail shaker, and shake with ice until well-chilled, about 15 seconds.
Double strain out the ice, and vigorously dry shake the ingredients without ice.
Because you've already strained the drink, simply pour it into a chilled coupe glass.
Express a lemon peel over the final drink for extra lemon aroma that masks the smell of egg whites, and then use it as a lemon twist garnish.