Kyoto Kaiseki Suimono Clear Soup Construction

Ingredients

• For the ichiban dashi
• 15 g Rishiri or Ma-kombu, wiped clean with a damp cloth; do not wash
• 20 g honkarebushi katsuobushi, premium aged bonito flakes
• 1 litre cold water
• For the seasoning
• 3–4 ml sake, for depth and alcohol lift
• 2–3 ml shiro shoyu (white soy sauce), Kyoto-style; do not substitute koikuchi
• 2 g fine sea salt, to achieve 0.5–0.6% salt concentration in finished dashi
• For the gu (bowl ingredients)
• 80 g seasoned protein, e.g. a small piece of lightly seasoned white fish or tofu; cut and pre-cooked to portion size
• 40 g seasonal vegetable, e.g. blanched mitsuba, fu (gluten cake), or bamboo shoot; pre-prepared and trimmed
• For the suikuchi (aromatic garnish)
• 4 strips yuzu peel (winter), kinome leaf (spring), or cucumber spiral (summer), cut or prepared at the last moment; placed on the soup surface immediately before service

Method

1. 1
   Place the kombu in 1 litre of cold water in a clean pot. Bring slowly to 60–65°C over low heat — this takes approximately 20–30 minutes. Hold at this temperature for 10 minutes, then raise the heat gradually. Remove the kombu just before the water reaches a simmer; a few small bubbles will appear around the edges of the pot. The water is ready when the kombu has softened completely and released a faint marine fragrance.
2. 2
   Raise the heat to bring the kombu liquor to just below a simmer — no higher than 95°C at any point. Add all the honkarebushi at once. Do not stir. Hold at 90–95°C for 2–3 minutes; the flakes will sink gradually. The dashi is ready when the liquor carries a clean, direct bonito fragrance without any trace of fishiness. This is the step on which the dish lives or dies: a single boil here denatures proteins into the liquor and creates irrecoverable cloudiness that no straining will correct.
3. 3
   Remove from the heat immediately. Allow the katsuobushi to settle for 1 minute, then ladle the dashi through a fine-weave sarashi (bleached cotton cloth) into a clean pot. Do not press or squeeze the cloth. Hold the strained dashi up to the light: it must be absolutely clear with a pale amber colour. Any cloudiness at this stage indicates technique failure and the dashi cannot be used for suimono.
4. 4
   Season the clear dashi over very gentle heat. Add sake first, then fine sea salt in small increments, then the shiro shoyu in drops. Taste carefully, remembering that the soup will be served very hot and that salt perception increases with temperature: target a seasoning level that tastes delicately under-salted at tasting temperature — approximately 0.5–0.6% salt concentration in the finished liquid. The soup is correctly seasoned when it is present but not assertive.
5. 5
   Prepare the gu. Arrange the pre-cooked, pre-seasoned protein and the prepared vegetable in each lacquered wan (soup bowl) with deliberate visual composition suited to the season and formality of the meal. The gu must be in place before any soup is added; it is never heated in the dashi.
6. 6
   Bring the seasoned dashi to 80–85°C — hot enough that steam rises steadily but the surface does not tremble with a boil. Ladle carefully over the arranged gu in each bowl. The soup is at the correct service temperature when, on lifting the bowl lid slowly, a visible column of fragrant steam rises from the surface.
7. 7
   Place the suikuchi on the surface of the soup or on the bowl edge at the very last moment before the lid is closed and the bowl is served. The garnish is correctly placed when its volatile oils are still fully intact — a fresh, sharp seasonal scent should be immediately perceptible on opening the lid at table.