Chicago's 19-Alarm Chili

Recipe Instructions In a large pot bring the tomato puree and whole tomatoes to a slow boil. While this is heating, brown the ground beef with chopped onion. Add this to the tomato mixture. Add chili powder and simmer for 1 hour. Add oregano, salt and pepper to taste and simmer for another 15 minutes. Add kidney beans and simmer 30 minutes longer. Serve in a bowl with Cheddar cheese on top and a dollop of sour cream placed in the center. Diced onions complete the garnish.