Ingredients

  • 2 large chickens, cut into pieces
  • 8 quarts water
  • 6 stalks fresh lemongrass (bottom 5 inches only)
  • 1 tablespoon coriander seeds
  • 2 teaspoons kosher salt
  • 3 grinds fresh pepper
  • 4 lemons
  • 8 cloves garlic, peeled
  • 1/2 cup sugar
  • 1/2 cup nuoc mam
  • 1/2 cup chicken broth
  • 1 1/2 teaspoons chili-garlic sauce, plus more to taste
  • 2 fennel bulbs, trimmed and cut into 6 wedges
  • 4 small zucchini, trimmed, halved lengthwise and cut across into 2-inch pieces
  • 8 medium carrots, peeled, halved lengthwise and crosswise
  • 16 asparagus tips with 2 inches of stalk left on
  • 16 shiitake or white mushrooms, stemmed
  • 2 small heads Napa cabbage, quartered and tied together with string
  • 2 small taro roots, peeled and cut into chunks about 3/4 inch by 1 1/2 inches
  • 16 scallions, white and light green parts only
  • 4 medium baking potatoes, peeled and cut into large chunks
  • 2 heads broccoli, florets only
  • 1 pound salmon fillet, cut into chunks about 2 inches by 1 inch by 1/2 inch
  • 1 pound tuna steak, cut into chunks about 2 inches by 1 inch by 1/2 inch
  • 1 pound sea bass fillet, cut into chunks about 2 inches by 1 inch by 1/2 inch
  • 1 pound large shrimp, peeled and deveined
  • 1 pound sea scallops
  • 16 littleneck clams
  • 16 small mussels
  • 1 pound squid, cut into rings

Method

  • At least one day before serving, make the broth by placing the chickens in a large stockpot.
  • Add the water and bring to a boil.
  • Lower the heat and skim off the foam as it rises.
  • Cook 10 minutes.
  • Add the lemongrass, coriander, salt and pepper.
  • Simmer slowly for 4 hours.
  • To make the dipping sauce, juice 2 of the lemons.
  • Peel the other lemons with a paring knife, removing all peel and pith.
  • Cut the lemon sections away from the membranes.
  • Squeeze out the lemon remains to get all the juice.
  • Set aside.
  • Chop the garlic in a food processor.
  • Add the lemon sections and juice and pulse to make a coarse puree.
  • Scrape into a bowl and stir in the sugar, nuoc mam, chicken broth and chili-garlic sauce.
  • Store, covered, in the refrigerator.
  • (Let come to room temperature before serving.)
  • Strain the broth through a fine- mesh sieve.
  • Refrigerate overnight and skim off the fat.
  • Place in a large pot and bring to a boil.
  • Blanch the vegetables in the broth one type at a time, removing them with a slotted spoon or skimmer before adding the next group.
  • Make sure the broth is simmering before adding the vegetables.
  • Blanch the fennel until crisp-tender, about 5 minutes; zucchini until tender, about 3 minutes; carrots until tender, about 12 minutes; asparagus until crisp-tender, about 1 to 2 minutes; mushrooms until tender, about 3 minutes; Napa cabbage until crisp-tender, about 15 minutes, then untie; taro root until tender, about 15 to 20 minutes; scallions until tender, about 5 minutes; potatoes until tender, about 15 minutes; broccoli florets until tender, about 5 minutes.
  • The vegetables can be blanched a few hours ahead of time.
  • To serve, strain the broth again and divide between 2 electric cook pots, large fondue pots or large pots that can be placed over electric hot plates.
  • Arrange the vegetables and the raw seafood on platters.
  • Spoon the dipping sauce into 8 individual shallow bowls or plates.
  • Guests should have long-handled forks, or individual dipping baskets, soup spoons, chopsticks and soup bowls.
  • At the table, heat the broth to a simmer and let guests cook the seafood and reheat the vegetables in the broth, as well as ladle some broth into their bowls.