Step 1

In a large skillet cook ground beef over medium-high heat until brown, using a wooden spoon to break up meat as it cooks. Drain off fat.

Step 2

Transfer meat to a 4- to 5-quart slow cooker. Stir in tomatoes, black beans, pinto beans, kidney beans, broth, yellow onions, tomato sauce, chili powder, chipotle pepper, garlic, cumin, cinnamon, and coriander.

Step 3

Cover and cook on low-heat setting for 6 to 8 hours or on high-heat setting for 3 to 4 hours. If using low-heat setting, turn to high-heat setting. Stir in chocolate and honey. Cover and cook about 15 minutes more or until heated through. If desired, serve with sour cream and green onions and sprinkle lightly with cocoa powder.