Use a whole chicken with bones for the richest flavor – don't use boneless chicken breasts. Start with cold water, not hot, to extract maximum flavor. Keep the heat at a gentle simmer, not a rolling boil, for clear broth. The lemon juice at the end really makes a difference – don't skip it. Store broth and noodles separately for best leftover quality. Soup tastes even better the next day after flavors meld overnight.