Preheat oven to 400F. Line a rimmed baking sheet with aluminum foil. Place a wire cooling rack on top.
Spray the rack with cooking spray. In a medium saucepan over medium-low heat, add the brown sugar, bourbon, and maple syrup. Cook, stirring often until the mixture is reduced and because a thick syrup/glaze. ~about 15-30 minutes. Watch the heat so it doesn’t burn. If it starts to reduce too quickly, you should reduce the heat. Keep it warm once it’s reduced.
Place the pieces of bacon on top of the rack trying not to overlap. Spoon or brush the syrup on top of the bacon. Place in oven and cook for 13 minutes. Remove from the oven and flip the bacon. Spoon or brush the mixture on top of the bacon. Return to the oven and cook for 13 minutes.
If the bacon is not crispy enough (remember it’ll crisp up as it cools), flip the bacon over, spoon any remaining spice mixture and bake for a few more minutes. OR you can broil for 1 minute each side but watch as this will burn.
Remove from the oven, allow to cool 1 minute on the rack and then using cooking tongs, and remove the bacon from the rack and plate.