Cut top and bottom off of onions. Then peel the onions.

Core the onions. Do not poke a hole all the way through the onion.

Mix beef, dry rub, and any other burger mixings desired.

Put burger mix into each onion. Place cheese inside of the burger mix if desired.

Wrap each onion with 2 to 3 pieces of bacon per onion. Secure bacon with toothpicks.

Set smoker to 280 degrees. Once the smoker is is at temperature, add the onions, and smoke for 90 minutes.

Put hot sauce on top of the onion (optional), and coat the bacon in bbq sauce. Top with cheese if desired. Cook until beef reaches desired temperature.

Let the bacon bombs rest for 10 minutes before serving.