This take on the reverse Manhattan is best with a bold & spicy rye.
2oz Amaro Montenegro
1oz Rye Whiskey
1 Dash Angostura Bitters
1 Orange Twist
Add the amaro, whiskey and bitters into a mixing glass with ice and stir until well-chilled. Strain into a rocks glass over fresh ice. Express the oil from the orange twist over the top of the drink and discard. Garnish with a cherry.
You could also build in the glass and save yourself some dishes.