Americans have been slurping down pho, a hearty Vietnamese noodle soup, increasingly for the past decade, but a big question ...

Making stock from scratch is usually an easy way to use every bit of meat or every scrap of vegetable. Pho broth, however, isn't so simple, requiring numerous steps, ingredients, and cooking methods.

Dishes are cooked as the chef envisions them, but sauces are on each table to add heat or spice as the diner wishes.