This is my go-to sloppy joe recipe. Liquid smoke is the key ingredient here.
Cook and stir ground beef in a skillet over medium heat until meat is browned and crumbly, about 10 minutes; drain excess grease. Mix ketchup, dried onion, brown sugar, mustard, Worcestershire sauce, smoke flavoring, and garlic into beef, stirring until brown sugar has dissolved.
Stir beef broth into beef mixture and bring to a boil; reduce heat to low and simmer until thick, about 30 minutes. Season with salt and black pepper.
Per Serving: 248 calories; protein 16.1g; carbohydrates 19.6g; fat 12g; cholesterol 49.6mg; sodium 743.4mg.