How to Make It
Place milk and cinnamon stick in a small saucepan; bring to a simmer over medium. Reduce heat to low, simmer until milk is infused with cinnamon, about 10 minutes. Remove from heat; let stand 5 minutes. Whisk in syrup and vanilla, stirring until combined, about 1 minute. Remove cinnamon stick. Pour into a mug, and sprinkle with nutmeg.