Combine the sea salt, garlic powder, smoked paprika, cinnamon, and black pepper in a small dish.
Place your pork tenderloin in a baking dish.
Sprinkle the spice mixture evenly all over the tenderloin.
Place a half slice of bacon across the tenderloin, tucking the ends underneath. Start at one end and work your way to the other, blanketing the tenderloin with lovely strips of bacon.
Place the tenderloin in the oven and bake for 30-40 minutes, or until the tenderloin reads 140 degrees when tested with a meat thermometer. Allow it to rest 5-10 minutes before you slice it.
While the tenderloin is baking, combine all of the sauce ingredients together in a sauce pan. Bring it to a boil, reduce the heat to medium, and let it gently cook until the liquid has reduced by half.
To serve, place the tenderloin on a platter with a lip. Spoon some of the sauce over the top. Reserve the rest for serving with.