In a large skillet over medium-high, heat the oil.
Add onion and garlic. Cook until onion is translucent, about 3 minutes. Stir in ground beef, cooking until browned, about 5 minutes. Drain fat if necessary.
Add meat mixture to slow cooker crock with crushed tomatoes, broth, cider vinegar, chili powder, unsweetened cocoa powder, Worcestershire sauce, ground cumin, cayenne pepper, ground cinnamon, salt, black pepper, bay leaf and ground cloves.
Cover slow cooker and cook on HIGH for 3 1/2 to 4 hours or LOW for 7 to 8 hours.
Serve over cooked spaghetti with chopped onions and shredded cheddar cheese.
In a large skillet over medium-high, heat the oil.
Add onion and garlic. Cook until onion is translucent, about 3 minutes. Stir in ground beef, cooking until browned, about 5 minutes. Drain fat if necessary.
Add meat mixture to slow cooker crock with crushed tomatoes, broth, cider vinegar, chili powder, unsweetened cocoa powder, Worcestershire sauce, ground cumin, cayenne pepper, ground cinnamon, salt, black pepper, bay leaf and ground cloves.
Cover slow cooker and cook on HIGH for 3 1/2 to 4 hours or LOW for 7 to 8 hours.
Serve over cooked spaghetti with chopped onions and shredded cheddar cheese.