In a Dutch oven over medium heat, add the chili powder, stirring for 20-30 seconds until fragrant.

Add the ground beef and diced onion to the Dutch oven and saut? until the beef is browned. Drain excess fat.

Add the spaghetti pieces to the beef mixture, allowing them to absorb the juices and spices.

Stir in the chili beans with juices, tomato juice, sugar, salt, and pepper. Bring to a boil, then reduce heat and simmer for 25-30 minutes.

Serve the chili in deep bowls, garnished with shredded cheese, corn chips, and sour cream as desired.