In a teapot, boil enough water for two drinks. While your water is boiling, get the sage butter out of the refrigerator and let sit at room temperature to soften a bit. Fill up your mug with the freshly boiled water and place a plate on top to seal in the heat. After a few minutes, discard the tempering water and fill the mug a little more than halfway with more of the freshly boiled water. Add the tea bag or herbs, and put the plate back on top of the mug to seal in the heat and get a nice infusion going. While the tea is infusing, cut some wedges of lemon, removing the seeds. After three minutes, remove the tea bag and lift the plate off your mug and squeeze in about 1/2 ounce of lemon juice. Add the honey syrup, allspice liqueur, the remaining dash of bitters, and the rum to taste, depending on how strong you like your drink. Warm a spoon under the faucet and stir all the ingredients together in the mug. Slice two small pats of sage butter and add them to your drink, slowly stirring to incorporate the butter (I know you’re thirsty, but don’t spill your precious creation by stirring too aggressively!). Garnish with a big sprig of sage (or even rosemary, as shown), and star anise pods and use the sprig to stir in the butter as needed. Be warm, be merry—you are enjoying a drink so delicious, it doesn’t matter how cold it is outside.