Dekadent Negroni Sour

Fill a coupe or rocks glass with ice and water to chill it while you mix the drink. Combine the Dekadent Negroni, ACID and egg white in a shaker without ice, and shake hard for about 20 seconds to build a dense, creamy foam. Add ice and shake briefly, about 10 seconds, until chilled. The Negroni is already diluted, so you only need to cool the drink. Empty the glass and double strain the drink into it. Place three drops of orange bitters on the foam and drag a knife through them for a pattern. Express an orange peel over the drink. Serve immediately, while the foam is firm, and enjoy your Dekadent Negroni Sour!