Start with a small finishing set
Sliced scallions, cilantro, and a little thinly sliced onion make a useful starting point for chicken pho. Put lime and chili on the table so each person can adjust their own bowl.
Garnishes should make the broth more interesting, not hide it. Taste the soup before adding acid or bottled sauces. A delicate chicken stock can change dramatically with just one large squeeze of lime.
Prepare onion and scallions
Slice onion thinly across the grain. If it is very sharp, soak the slices in cold water for 10 minutes, then drain well. A large wet handful can cool the broth, so use a modest portion.
Cut scallion greens finely. The white parts can be sliced thinly or briefly warmed in the broth if you prefer less raw bite. Add them when assembling rather than simmering them through the entire stock cook.
Choose herbs for the bowl you want
Cilantro gives a fresh finishing aroma. Thai basil adds a stronger anise-like note and can be offered separately rather than assumed to belong in every bowl. A restrained Hanoi-inspired bowl on this site uses scallions and cilantro without a large herb plate.
Wash herbs under running water and dry them well. Remove tough stems and damaged leaves. Tear delicate leaves just before eating; a heap of chopped herbs can wilt while waiting for the rest of dinner.
Add lime and chili gradually
A little lime can brighten a rich broth, but too much makes it sour. Offer wedges so diners can start with a few drops. Fresh chili varies widely in heat; a few thin slices are easier to control than a large spoonful of chili sauce.
Hoisin and chili sauces bring sweetness, salt, and strong flavors of their own. If using them, try a small dish for dipping chicken first so you can still taste the plain broth.
What about bean sprouts?
Bean sprouts provide crunch, but they are optional. If serving them, keep them refrigerated and cook them thoroughly, especially for people at higher risk of foodborne illness. A brief splash of hot broth is not a reliable way to make raw sprouts safe.
You can simply omit sprouts and use scallions and herbs instead. The soup does not depend on a long garnish list.
Build bowls in a useful order
Warm the bowls if convenient. Add freshly cooked noodles, then cooked chicken, onion, and scallions. Pour over steaming broth and finish with cilantro. Serve immediately with the optional extras at the table.
For a group, prepare small dishes of toppings in advance and keep perishable ingredients chilled until needed. Do not assemble every bowl far ahead: noodles keep absorbing liquid and herbs lose their freshness.
Questions from the kitchen
Do I have to use basil?
No. Cilantro and scallions are enough for the recipes on this site. Basil is an optional table garnish where listed.
Can garnishes fix bland broth?
They add freshness but do not replace a well-seasoned base. Adjust the broth’s salt and concentration before assembling.