Stir. Strain over big rock in OF glass. Garnish with grapefruit oil from the twist. Discard.
A Monte Carlo riff, or a Mezcal Old Fashioned with benefits. You decide. The small amount of Rye brings all the spice notes to the front and really amps up the cinnamon. The Nonino offsets the overall sweetness with it's light bitterness and adds a delightful herbal backbone.