Ingredients
Method
- Brown beef and onion in 6-quart pot over medium-high 8 minutes, crumbling beef finely, to 160°F. Drain excess fat.
- Stir in garlic 30 seconds. Add broth, ketchup, mustard, salt, and pepper; boil.
- Add macaroni; simmer uncovered 8 to 10 minutes until just tender, stirring often.
- Add milk; gently heat 2 to 3 minutes until steaming without hard boiling.
- Off heat, stir in American cheese, then cheddar in 3 additions, until smooth. Divide among 6 bowls while broth still flows around pasta.