It is fall, and as the weather gets colder and colder, flavors in cocktail get richer and deeper. Gone are the lemonades and muddles berries and touches of mint from the summer months. We are now in cinnamon and allspice and vanilla...and smoke. Smokey cocktails come out of the woodwork in the fall. Most reach for scotch when trying to add smoke; Elena Lepkowski of Serious Eats reaches for the mezcal for a Sierra Madre Sunrise.