Cincinnati Chili

Onion (chopped, 1)

Ground beef (1 lb)

Garlic (minced, 1 tbsp)

Chili powder (1 tbsp)

Ground cinnamon (1 tsp)

Ground all spice (1 tsp)

Salt (1/2 tsp)

Unsweetened cocoa powder (1 1/2 tsp)

Tomato sauce (15 oz)

Cider vinegar (1 tbsp)

Water (3/4 cup)

Optional: Cooked spaghetti or hot dogs and shredded cheese