4 strips of bacon

1 pound ground beef

1 cup finely chopped onion (about 1 medium onion)

3 cloves garlic, finely chopped

2 Tablespoons Worcestershire sauce

4 cups chicken broth

¼ cup all-purpose flour

1 ½ cup milk

2 cups grated cheddar cheese

2 Tablespoons yellow mustard

3 Tablespoons ketchup

Salt and pepper to taste

2 hamburger buns

Butter for the buns