- 1 lb (454 g) dried soba noodles - 8 cups (1.9 L) dashi stock (made from kombu and katsuobushi or instant dashi) - 1/2 cup (120 ml) soy sauce - 1/4 cup (60 ml) mirin - 2 tbsp (30 ml) sake (optional) - 2 tsp (10 g) granulated sugar - 4 scallions, thinly sliced - 1/2 cup (50 g) tenkasu (tempura bits) - 1/2 cup (25 g) shredded nori or toasted seaweed strips - 1/2 cup (120 ml) grated daikon radish (optional) - Wasabi paste, to taste - Shichimi togarashi (Japanese seven-spice), to taste - Small bowls for serving (no measurement)
1. Make the tsuyu-style hot broth: combine dashi stock, soy sauce, mirin, sake (if using) and sugar in a pot, bring to a gentle simmer, taste and adjust seasoning; keep hot over low heat. 2. Bring a large pot of water to a rolling boil and cook the dried soba according to package instructions until al dente (usually 4–5 minutes); stirring gently to prevent sticking. 3. Drain the cooked soba into a colander and rinse briefly under cold running water to remove excess starch if you prefer; for wanko style some prefer a quick hot rinse—choose according to texture desired—then drain well. 4. Prepare condiments: place sliced scallions, tenkasu, grated daikon, nori strips, wasabi and shichimi in small communal dishes so guests can assemble their preferred toppings. 5. To serve in authentic wanko fashion, ladle a small amount of hot broth into each small individual bowl, place a small bundle of noodles into the bowl and bring to the table; repeat servings as guests finish each small bowl. 6. For a home-party approach, place several small bowls per guest and keep the broth hot; replenish each bowl with a few noodles and hot tsuyu several times so guests can enjoy multiple short servings. 7. Encourage guests to top each bowl as they like with scallions, tenkasu, nori, a dab of wasabi, grated daikon, or a sprinkle of shichimi; pace servings so broth remains hot and noodles are freshly served. 8. When finished, some traditions place a final bowl with a raw quail egg or a light pour of broth as a closing bowl; this is optional—offer it warmed if using.
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