The Calabaza Caliente
For the Honey-Sage Brown Butter:
Brown the unsalted butter with a pinch of Kosher salt. Add the fresh sage leaves and cook until the butter is dark gold and has a nutty aroma. Remove from heat. When cooled, but still warm, add honey to taste (the finished product should have a distinctive sweet-salty flavor). Chill. For ease of service, chill completely and roll into a cylinder, slicing per drink.
To Assemble and Serve:
Combine the tequila, Port, and apple cider in a saucepan and heat. Top with a dollop of the Honey-Sage Brown Butter and the fresh sage leaf.