Potted Crayfish

Ingredients

• 100 crayfish
• pounded mace
• pepper
• salt
• 2 oz butter
• clarified butter

Method

Potted crayfish is a preservation technique built on a sealed fat layer — the clarified butter acts as an oxygen barrier, keeping the potted paste stable for weeks in a cool larder. This method depends on thorough pounding to create a homogeneous paste that will set properly under its seal.

Boil the crayfish in generously salted water at a rolling boil for 12–15 minutes, until the shells turn a deep coral-red and the meat inside is opaque and firm. Remove them with a slotted spoon and leave to cool enough to handle. Extract the tail meat by twisting the tail away from the head and peeling back the shell segments — the meat will slide out cleanly. Discard the heads and any membrane inside the tail. You'll need roughly 150g of cleaned meat.

Pound the crayfish meat in a mortar with pestle, working it into a smooth paste — this takes 5–8 minutes of sustained pressure, not rushed bashing. The goal is to break down the muscle fibres enough that the paste holds together without visible flecks. Add the butter in small knobs as you pound, incorporating each addition fully before adding the next. This gradual addition creates an emulsification between the moisture in the crayfish and the fat, resulting in a paste with a silky, uniform texture rather than a greasy one. Season aggressively with pounded mace, white pepper, and salt — potted pastes dull in flavour once sealed, so over-season slightly compared to what tastes right on the spoon.

Pack the paste firmly into small earthenware pots, pressing out any air gaps as you go — trapped air promotes mould and decay. Level the surface with the back of a spoon, then pour a quarter-inch layer of cooled clarified butter across the top, sealing it completely. The butter must cover the paste entirely and reach the rim; any exposed paste will oxidise and spoil.

Leave to set in a cool place (below 15°C ideally) for at least 24 hours before serving. The potted paste will keep for 4–6 weeks provided the butter seal remains unbroken. Serve at room temperature on toasted bread, breaking through the butter seal as you eat.