Kohaku 琥珀 こはく Omakase
Hotel Nikko Bangkok, 3F, Ginza Thonglor, 27 Thong Lo, Khlong Tan Nuea, Bangkok 10110
Book the Ume if you are doing this as a milestone meal and the Matsu if you are testing the kitchen before committing. The L-shaped counter only seats twelve, so the chef-to-guest ratio is the actual product here. Aim for the earlier seating, the binchotan-grilled black throat sea perch lands cleanest before the counter fills.
Take the lift to the third floor of Hotel Nikko Bangkok and the room you want sits inside Ginza Thonglor, the Japanese restaurant cluster the hotel built on Thong Lo. Kohaku is the counter at the back. Twelve seats on an L-shape, Chef Tor Jeerawat Puangmalai working the cutting board in front of you, one omakase session at a time.
The menu runs on tiers.
The entry point is a 990-baht omakase, the Matsu set works through twelve courses for about 2,500 baht after service, and the Ume dinner climbs to eighteen courses at 4,900 baht. The 4,900-baht Ume is the kitchen's full statement: snow crab appetizers open the sequence, Japanese Spanish mackerel and firefly squid sit through the cold-and-warm transition, binchotan-charcoal-grilled black throat sea perch lands as the hot anchor, and the session closes with sakana dashi soup and a kasutera sponge cake finished with yuzu sauce. The progression is built around Japanese seasonality, with the ingredient rotation following the calendar rather than a fixed printed menu.
The room reads more counter-craft than dining room. You sit at the L-shape and the chef plates in front of you, which means timing matters: arriving late breaks the sequence the kitchen built around your seating, so the booking system asks for confirmation that you can hold the start time.
Advance booking is required and the twelve-seat cap means the calendar runs tight on weekends. Reserve the Ume slot for a milestone, walk in with the Matsu if it is your first visit, and let the chef pace the courses rather than asking for substitutions, the sakana dashi closer only lands right if you eat in sequence.