1 oz of whiskey
3 pinches of cinnamon
1 tsp of butter
7 oz of hot water (or water)
1 tsp of powdered sugar (or sugar)
Add the cinnamon, powdered sugar and butter to an Irish coffee cup/mug. Pour a single ounce of boiling water, and stir to dissolve thoroughly. Add whiskey. Fill with boiling water, stir again and serve.