Tekkadon (鉄火丼, tuna sashimi rice bowl)

Tekkadon begins at the fish counter, not at the stove. If the tuna is glistening fresh, deep red, and clean-smelling, the bowl is already halfway made. If it smells strong or looks dull, cook something else tonight. No sauce will make tired fish honest.

The hesitation is usually the raw tuna. Good. Be particular there. Ask for tuna meant to be eaten raw, keep it cold, and slice it just before serving. The knife matters because each slice is the seasoning you can't pour on: a single clean pull leaves the face smooth and bright, while sawing bruises the flesh and makes the bowl taste muddier than it should.

Underneath, the rice must be warm enough to carry its fragrance but not hot enough to cook the fish. Season it as sumeshi, vinegared rice, with rice vinegar, sugar, and salt, then fan it as you fold so it turns glossy instead of wet. Lay the tuna in an odd-numbered fan, add wasabi, scatter shredded nori, and stop. This is honmono made reachable: rice, tuna, restraint.