Cincinnati Chili with chuck

1 lb ground chuck, beef (80% lean) 1/4 cup finely chopped green onion , plus more for serving if desired 1 tablespoon chili powder 1 teaspoon ground cinnamon[...]

2 lbs ground round or 2 lbs 95% lean ground chuck 2 large onions , chopped 3 garlic cloves , minced 1 (15 ounce) can tomato sauce 1 (8 ounce) can tomato paste[...]

2 tablespoons vegetable oil 2 onions , chopped 2 garlic cloves , minced 2 tablespoons chili powder 2 tablespoons sweet paprika 1 1/2 teaspoons ground cumin 1[...]

2 teaspoons salt (or more) 1 1/2 lbs ground chuck (no subs) 2 tablespoons vegetable oil (I used canola) 2 medium onions , chopped fine (about 2 cups) 2 medium[...]