Run a vegetable peeler down a clean orange to get one wide strip, about 3 inches long. Lay it flat and trim off every bit of white pith with a paring knife — this is the twenty seconds that keeps the whole mug from turning bitter.
Bring 1 cup of water to a boil in a small saucepan. The second it bubbles, pull the pan off the heat. You want just enough heat to open the tea, not enough to bully the orange into bitterness.
Drop in the tea bag, the cinnamon stick, and the orange strip. Cover with a lid or a small plate and steep for exactly 5 minutes. Walk away — the lid does the work and lifting it early just lets the heat out.
Warm 3/4 cup of milk in a small pot over medium-low until hot to the touch but not bubbling. Froth it with a milk frother, or pour it into a jar with a lid and shake for ten seconds.
When the timer goes off, remove the tea bag, cinnamon stick, and orange strip. If any pith survived, run the tea through a fine-mesh strainer. Stir in 1 tablespoon of honey or maple syrup until fully dissolved, then taste the tea before the milk goes in — it should taste smooth and bright, not sharp.
Pour the warm milk into the tea — not the other way around — from about four inches up so the foam rides along the top. Spoon any extra foam over like you mean it.
Sprinkle a tiny pinch of flaky salt over the foam. Lay the cinnamon stick across the rim as a stirrer. If you want the full visual, place — don't drop — one thin curl of orange zest on top of the foam. Then step back and admire the thing you made in ten minutes.