Great up a 9"x12" Baking Dish
Stir up brown sugar and butter in a pan on medium heat until the sugar and butter melt. It will take 2-4 minutes.
Pour the mixture into the baking dish and spread the bread pieces in 1 ½ - 2 inches in thickness over the top.
Mix and Beat the eggs, milk, and vanilla extract together and pour over the top of the breat. Insure that the liquid is absorbs in all areas of the bread. Spread cinnamon over the top!
Cover dish in tin foil or in plastic wrap and and refridgerate overnight for 8 hours
Pre-heat smoker/oven to 450°, once preheated remove plastic wrap, sprinkle brown sugar over the top and put into the smoker.
Let it cook for about 30 minutes or until brown and bubbling