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Overview
This guide is for small boneless lamb neck fillets, not a whole neck or thick bone-in rounds. Chef Allen Koh's original method uses individual 85-gram pieces with a miso marinade and a short bath.
Keep that small-piece distinction: the timer starts the cook, but every fillet still needs a thermometer check. The guide finishes and serves them immediately instead of using the original ice-bath step.
Time and temperature
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| Texture | Bath setting | Check before serving | Cook time |
|---|---|---|---|
| Small Fillets | 145°F | 145°F | 40 minutes |
Individual boneless lamb neck fillets weighing about 85 grams each, laid flat without rolling. Start timing when the bag enters the fully heated circulating bath. The bath begins the cook. Follow the thermometer check in Cook safely, using additional heat when needed before the final finish.
Choose your texture
- 145°FSmall Fillets
- Small fillets hold together for carving, with a savory crust added at the end.
Best for
- Individual boneless lamb neck fillets weighing about 85 grams each, laid flat without rolling.
Get it ready
- Buy boneless neck fillets already portioned to about 85 grams each. Do not substitute a whole neck or thick bone-in slices.
- Trim loose membrane and keep the fillets refrigerated while the bath heats.
- Season lightly or coat with a little freshly mixed miso seasoning, keeping a clean portion separate for serving.
- Bag each piece flat without stacking, seal, and submerge in the fully heated bath. Start the listed time.
Finish and serve
- Take each fillet from its bag with clean utensils and discard bag liquid and used marinade.
- Probe every fillet at its thickest center. If it has not reached 145°F, continue cooking in a skillet or oven and check again.
- Wipe off excess miso, dry the surfaces, and brown gently without burning the coating.
- Rest at least 3 minutes after final heat. Slice across the grain and serve with the clean reserved seasoning or a fresh sauce.
Useful tips
- Miso is salty; taste the clean finishing sauce before adding more salt.
- Keep each piece separate so you can check it and turn it individually.
- Use the neck guide only for the small fillets described here; choose a long braise for a different form.
Common problems
- The neck is tough after the short bath
- A large piece or different neck cut was used. Do not extend this small-fillet schedule by guesswork. Use a method written for that cut and size.
- Miso burns on the surface
- A thick wet coating was left on during searing. Wipe off the used marinade and brown over controlled heat, then add clean sauce.
Questions
QDoes the 40-minute time fit a whole lamb neck?
QWhy check temperature when the bath is already at that setting?
QCan I chill the cooked fillets before browning?
Cook safely
Use fully thawed, refrigerator-cold whole pieces of meat; this guide does not cover ground, injected, mechanically tenderized, stuffed, or rolled meat.
Measure the thickest center of every small fillet from the side, avoiding fat and gristle and checking additional areas where a piece is uneven. Each measured spot must reach 145°F before the final browning or sauce.
If a spot is cooler, continue cooking in a skillet or oven and check again. A bath below that temperature needs a hotter cooking step; the timer alone cannot make it ready to eat.
Rest for at least 3 minutes after the last heat before slicing, pulling, or serving. Use clean utensils, discard bag liquid, and serve immediately. These instructions do not cover chilling, storage, reheating, or hot holding.