Cincinnati Chili

Name: Cincinnati Chili
Ingredients: 2 pounds 80/20 ground beef; 2 cups beef broth; 2 cups water; 1 (15-ounce) can tomato sauce; 3 cups yellow onions (from 2 small [7 ounces each] onions), finely chopped, plus more for serving if desired; 2 tablespoons minced garlic (from 6 large garlic cloves); 2 tablespoons chili powder; 1 tablespoon unsweetened cocoa powder; 1 tablespoon Worcestershire sauce; 2 teaspoons kosher salt, plus more to taste; 1 teaspoon ground cumin; 1 teaspoon ground cinnamon; ½ teaspoon ground allspice; ½ teaspoon cayenne pepper; ½ teaspoon black pepper; ¼ teaspoon ground nutmeg; ¼ teaspoon ground cloves; 12 ounces uncooked spaghetti, cooked according to package directions; 1 (15-ounce) can red kidney beans, drained and rinsed (optional); 4 ounces c heddar cheese (about 1 cup) , shredded (optional); 2 teaspoons orange zest (from 1 orange), grated (optional)