Dobinmushi Teapot Soup Autumn Matsutake

Ingredients

• For the dashi
• 15 g kombu, wiped clean with damp cloth; do not wash
• 1 litre cold water
• For the broth seasoning
• 4 g fine sea salt
• 5 ml usukuchi soy sauce, light soy; use sparingly—broth must remain clear and pale
• For the solid ingredients
• 1 domestic Japanese matsutake mushroom, Tanba or Kyoto Kitayama preferred; wiped, never washed; sliced 5 mm thick on the bias
• 4 kuruma ebi or similar shrimp, shelled, deveined, tail on
• 12 ginkgo nuts, shelled, skin removed, lightly blanched
• 8 mitsuba sprigs, stems trimmed; leaves left whole
• 4 pieces fu wheat gluten, soaked until just softened, squeezed gently
• 4 hamaguri clam, scrubbed; one per dobin
• At table
• 2 sudachi, halved; one half per guest, served alongside

Method

1. 1
   Place the kombu in the cold water and steep at room temperature for a minimum of 30 minutes, or refrigerate overnight. Set over medium heat and bring slowly toward a simmer. Remove the kombu just before the first bubbles break the surface—a faint savoury scent rises and the water has turned pale gold. Discard the kombu. Season the dashi with the salt and the smallest measure of usukuchi; the broth must remain colourless and light. Taste: it should be barely seasoned, with no element strong enough to announce itself over matsutake.
2. 2
   Wipe the matsutake with a dry cloth or a barely damp one. Do not rinse under water. Slice on the bias to 5 mm. The cut face should release an immediate, unmistakable pine-forest and cinnamon-bark scent. If no scent is present at the moment of cutting, the mushroom is past its prime or of insufficient quality—this is where the dish lives or dies, and no technique can recover what the ingredient has lost.
3. 3
   Distribute the solid ingredients across four dobinmushi teapots in this order: hamaguri clam first (it requires most heat), then shrimp, ginkgo nuts, fu, matsutake slices, and finally mitsuba on top. The teapot interior should be spacious; ingredients sit loosely, not packed. The broth must remain the primary experience.
4. 4
   Ladle the seasoned dashi into each dobin, filling to roughly two-thirds capacity to preserve a steam pocket above the broth. Set the lids and the small porcelain cups—which also serve as lids—in place. Arrange the dobins in a steamer over vigorously boiling water. Steam for 6 to 7 minutes. The broth inside will be heard to simmer faintly; the teapot body will be too hot to hold bare-handed.
5. 5
   Carry the dobins directly to the table without delay. A dobin arrived cool at table signals failed kitchen timing; the steam aromatics must still be active on arrival. Present each dobin with its cup alongside and a halved sudachi. Instruct the guest to lift the lid fractionally—the concentrated matsutake volatiles release in a single aromatic event. The guest then pours the broth through the spout into the cup, squeezes sudachi only after the first aroma sip, and drinks before eating the solid ingredients from the teapot with chopsticks.