Poke-House Seared Ahi

Poke means to cut crosswise into pieces — it's a verb about knife work, not a bowl with mango in it. The old version was reef fish or heʻe with limu and inamona (roasted kukui nut) and paʻakai. Shoyu, sesame oil and green onion arrived later with Japanese plantation families, and that's the version every poke counter in Hawaii sells today. Seared ahi is the counter's other move: the block gets a hard char, the center stays cold and raw, and you cube it after.

Everything about this cook is heat and honesty about your fish. Buy sashimi-grade ahi from someone who will tell you when it landed, keep it refrigerator-cold right up to the moment it hits the grate, and get the fire genuinely screaming — a bed you can't hold a hand over for two seconds. A cold center and a black crust are only possible if the grate is hotter than the fish can conduct. Sixty seconds a side, and no more.

Ingredients

• 1.5 lbs sashimi-grade ahi, in one or two blocks about 2 inches square in section
• 2 Tbsp neutral oil, high smoke point
• Coarse Hawaiian sea salt
• Sauce: 1/4 cup shoyu + 1 Tbsp toasted sesame oil + 1 tsp rice vinegar
• 4 green onions, sliced thin on the bias
• 1/2 sweet onion, sliced paper thin
• 1 Tbsp toasted sesame seeds
• Optional: 2 Tbsp inamona, or 1/4 cup chopped limu if you can get it

Cook Sequence

1. Whisk the sauce, slice the onions, and have a chilled sheet pan sitting in the freezer. Everything is ready before the fish leaves the fridge.
2. Burn kiawe chunks down to a raging bed and pull the grate close — 600°F or better. Toss chips on right before the fish for a fast hit of smoke.
3. Pat the ahi bone dry, oil the block lightly on all sides, and salt heavily. Salt the block, not the finished cubes; the crust is where it belongs.
4. Block down. 60 seconds, then roll a quarter turn. Four faces, four minutes total. You want a black-brown crust no more than 1/8 inch deep on each side.
5. Straight onto the chilled pan. This stops the carryover cold — leave it on a warm board and the heat creeps another quarter inch into the fish.
6. Cut into 3/4-inch cubes. The band should read black crust, thin gray line, and a wide cold red center. If the gray band is thick, your fire was too weak.
7. Toss the cubes with the sauce and both onions right before serving, no more than 5 minutes ahead. Sesame seeds over the top. Poke sits in shoyu for minutes, not hours.

Round Out the Plate

• Coconut Rice — makes it a bowl
• Hawaiian Mac Salad — the third scoop on any poke plate