Try an old classic: warm milk with honey is as soothing, warming, and delicious as it was when you were five. Try spicing it up with a little cocoa powder, a splash of honey, or a dash of cinnamon, cardamom, or any other spice that inspires you.
Warm the milk and honey in a small saucepan until steaming. Do not boil. Stir to combine and add cinnamon if desired. Pour into mug and serve.