Combine all liquors in mixing glass. Fill 3/4 with ice, stir for 20 seconds. Strain into chilled coupe. Express lemon peel above glass, gently wipe rim and stem with spent peel. Twist and use for garnish.
Round, full-bodied, complex. Velvety. The high proof of the spirits used maintains the balance against some sweet and flavorful liqueurs. Much... bigger... than a Manhattan. If using a different Amaretto, might need to adjust amount.