Brew up a pot of hot coffee. Use any brewing method that you prefer.
Grab the fireball and jigger. Use the jigger to measure 2 oz of fireball and dump it in the mug.
Grab the coffee and jigger. Use the jigger to measure 4 - 5 oz of coffee and dump it in the mug.note: if desired, you can pour the coffee into the mug and top if off instead of using the jigger.
(optional) Use a bar spoon to stir your drink together.