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["Try this method for custardlike eggs, based on a Japanese tradition of cooking them in an outdoor hot spring: Heat a large pot of water to 160u00b0. Gently lower eggs into water and simmer 30 minutes, keeping water temperature between 152u00b0 and 156u00b0 (add a tablespoon of ice water to control the heat's rise). Chill eggs in cold water, then carefully crack into a small, shallow dish. Or soft-cook eggs the way you like.", "Boil udon (see ""Udon Essentials,"" below). Using a large strainer, scoop out noodles into a large bowl and save water to heat soup bowls.", "Meanwhile, put green onions in a bowl of cold water and vigorously swish around with your fingers to separate into rings. Drain; repeat twice.", "Bring broth to a boil in a saucepan.", "Warm 4 soup bowls by dipping them in hot udon-cooking water. Divide noodles among bowls. Scoop an egg into each, leaving behind most of white, and ladle broth over noodles. Top with green onions and a pinch of seven-spice powder.", "Udon Essentials Udon (wheat-flour noodles): Store-bought fresh-frozen noodles have a supple texture that's closest to homemade, while the dried ones tend to be thin and flabby. To cook store-bought fresh-frozen udon, drop the frozen block into boiling water. When the water boils again, drain. Cook udon right before serving; the noodles get sticky as they sit.", "Make ahead: Eggs in shell, up to 2 days, chilled. Green onions, up to 1 day, chilled."]
