STEP 1: Brown ground beef in a large skillet over medium heat. Season with onion powder and garlic powder while cooking. Cook until fully done and drain excess grease.
STEP 2: Transfer seasoned cooked beef to the slow cooker.
STEP 3: Add tomato paste, ketchup, beef broth, brown sugar, Dijon mustard, Worcestershire sauce, chili powder, apple cider vinegar, salt, and pepper; basically the rest of the ingredients. Stir until well combined to create the sloppy joe mixture.
STEP 4: Cover and cook on low for 3 hours, stirring once halfway through.
STEP 5: Taste and adjust seasonings as needed.
STEP 6: Serve on hamburger buns.
