Brown the hamburger in a skillet over medium heat.

If using fresh onion and garlic, brown them with the meat until softened.

In the same skillet, combine the browned hamburger, tomato sauce, molasses, apple cider vinegar, Dijon mustard, dry onion soup mix, onion flakes, onion powder, garlic powder, chili powder, paprika, and cayenne pepper (if using).

Stir well to ensure all ingredients are evenly distributed.

Add pepper salsa (if using).

Reduce heat to low and simmer for 30-60 minutes, stirring occasionally, to allow flavors to meld.