01 - In a large stockpot, combine ground beef and water. Use a wooden spoon to break up the meat thoroughly. Do not brown the beef—simmering it raw creates the authentic texture.
02 - Add chopped onion, garlic, tomato sauce, tomato paste, Worcestershire sauce, vinegar, brown sugar, chili powder, cinnamon, cocoa powder, allspice, cumin, cloves, cayenne pepper, bay leaf, salt, and black pepper. Stir well to combine all ingredients.
03 - Bring the mixture to a gentle boil over medium-high heat, then reduce to low and simmer uncovered for 1 hour 30 minutes, stirring occasionally. Skim any fat from the surface as needed during cooking.
04 - Taste and adjust salt or spice levels as desired. Remove and discard the bay leaf before serving.
05 - While chili simmers, cook spaghetti according to package instructions in a separate pot. Drain well in a colander when al dente.
06 - Layer cooked spaghetti in bowls and ladle chili sauce over pasta. Top as desired: two-way (spaghetti + chili), three-way (add cheddar cheese), four-way (add onions or beans), or five-way (add onions and beans). Serve immediately with extra toppings on the side.