Cooking Into a Twelve-Degree Room

This is the working document for the food and drink at Tangled Thistle’s The Ice Was the Luxury — a dinner served in a cold stone room around a single block of ice that is allowed to run out in front of everybody. The creative argument is over there. This is the prep clock, the quantities, the shopping order and the honest account of which two dishes are the entire workload.

The governing rule, and it decides everything below: the ice is the only cold thing. One short cold course early, and every other thing on the table arrives hot into a twelve-degree room. That inverts the usual event-catering problem. You are not fighting heat. You are fighting a room that strips heat off a plate roughly twice as fast as a warm dining room does, and every decision below is downstream of that.

The sequence

There is no cheese course and no salad. Cheese at cellar temperature after a cold first course is one texture too many, and a leaf salad in a twelve-degree room is a plate of cold wet leaves.

The prep clock, counted backwards from doors at eight

A week out

• Order the fish whole and ungutted-to-order, the oysters for delivery on the day, and the ice. If you are using a clear block it is made by directional freezing over three to four days, so it is ordered a fortnight ahead, not a week.
• Make the clear broth and freeze it. This is the single best decision in the plan: it is a two-day job that comes off the list entirely.
• Make the sawdust crumb and jar it. It keeps five days at room temperature and a fortnight if you are honest about the airtightness.

Three days out

• Culture the cream for the butter: 14 to 18 hours at 18–22 degrees, then chill.
• Make the anchovy butter and refrigerate.
• Make the lime-and-cane cordial and start the white pepper steep.

Two days out

• Churn, wash, salt and press the butter into its block. It needs at least twelve hours cold to cut cleanly.
• Make the Ice House Punch in full. It is better on day two.
• Braise the celery hearts completely and refrigerate in their liquor.
• Make the ice cream custard base and churn it. Three batches in a domestic machine means three days or three frozen bowls — decide now, not on the day.

The day before

• Make and freeze the granita, forking every 30 minutes for three hours.
• Decant the verjus and filter the pepper steep. Batch the Tuscany and the Wenham base.
• Slice the rye. Slightly stale bread makes better toast.
• Trim and wash the celery hearts if you did not braise them; keep in cold water.

The day itself

• Minus 8 hours. The ice block arrives and is placed. If it has come out of a cold store at minus ten or below it must temper before anybody cuts it — roughly two to three hours in a cool room for a quick temper, longer if it has been hard-frozen. A block cut straight from deep cold fractures and shears instead of chipping, and it will be white with condensation until it warms enough for that to clear. Both of those are timing problems, not equipment problems.
• Minus 6 hours. Mix the salt crust. Scrub the celeriac and the potatoes.
• Minus 4 hours. Salt-bake the celeriac. It holds three hours in its crust, which is exactly why it goes first.
• Minus 3 hours. Reheat the broth from frozen, slowly, and hold at 85 degrees. Bring the celery hearts up to room temperature.
• Minus 2 hours. Boil and steam-dry the potatoes. Set up the ice station and the pouring point — two separate places, for reasons given below. Chill the punch vessels into the sawdust crate.
• Minus 1 hour. Ovens to temperature. Plates into the warmer. Butter block out of the fridge four minutes before service and no earlier.
• Minus 15 minutes. Toast the rye. Cut the first butter slabs.
• 21:20. Crust the fish. Not before; salt cures on contact and a fish that has sat in its crust for two hours comes out dense and over-salted.

Quantities, at the two counts this evening actually runs at

The two dishes that are the workload

The first is the salt-crust fish, and it is not the crust that is hard — the crust is salt, flour and egg white mixed by hand in ten minutes. It is the oven. Ten fish do not fit in a domestic oven, they cannot be part-baked, they hold for twenty minutes and then start overcooking inside their own insulation, and they have to be cracked in front of people. Everything about this dish is a scheduling problem. Two ovens, four fish each, two waves fifteen minutes apart, and somebody whose only job for an hour is watching a probe.

The second is the brown bread ice cream, and it is hard for a reason nobody expects: the churn. A domestic machine takes a quart at a time and needs its bowl refrozen for twelve hours between batches. Three batches is three days or three bowls. Decide which a week out. If neither is available, the still-freeze method in the recipe works and is icier, and that is a legitimate trade rather than a failure.

Everything else on this menu is a make-ahead. The broth is frozen. The butter, the crumb, the anchovy butter, the punch and the celery are all done before the week starts. That is deliberate: a menu for a room with no kitchen has to put its labor in the fortnight rather than in the afternoon.

What holds and what collapses

The shopping order

1. Fortnight: the ice, if it is clear and commissioned. Directional freezing takes three to four days per block and the maker will want notice.
2. Week: fish ordered whole with scales on — say this explicitly, because a fishmonger will scale it as a kindness and it ruins the dish. Beef shin and bones. Sherry: fino for the punch and the granita, oloroso for the cocktail and the after-dinner. Rum. Verjus.
3. Three days: cream, cultured buttermilk, butter, eggs, milk. Rye, whole wheat for crumbs, white sourdough for the toast. Hazelnuts, demerara, coarse sea salt — nine pounds of it, which is more than you think and it is the thing people run out of.
4. Two days: celeriac, celery, potatoes, onions, lemons, limes, green apples.
5. Day of: oysters only, from a supplier who can tell you the harvest area and date, kept at or below five degrees until they are opened.

Two service notes that are not about cooking

The ice station is not the bar. One person cutting the block produces a piece roughly every forty seconds, which is ninety an hour. A bartender working a queue makes about a drink a minute. If those are the same person, or the same table, you have built a bottleneck into the center of the room. Two stations, two queues, and the great majority of drinks served all night contain no ice at all.

Warm the plates and warm the cups. In a twelve-degree stone room, ½ cup of 85-degree broth poured into a cold cup arrives at about 65 degrees, which is pleasant; into a chilled cup it arrives at 55, which is not. A domestic oven at fifty degrees, a covered box, a stack of towels — whatever you have. Heavy earthenware and cast iron beat porcelain here because thermal mass is the only thing standing between the kitchen and a cold table.

Every recipe

• The Tuscany — aged rum, oloroso and a lime-and-cane cordial
• The Wenham — a drink you can read through
• Ice House Punch, chilled without a single cube
• Cultured butter, cut cold, on rye that is still too hot
• Fino and green apple granita, scraped over oysters
• A clear broth of beef and burnt onion
• A whole fish in a salt crust, cracked at the table
• A whole celeriac in a salt crust, cracked with the same spoon
• Buttered potatoes under a sawdust crumb
• Celery hearts braised until they give way
• Brown bread ice cream, which is older than it sounds
• Anchovy toast at one in the morning

The design thinking behind all of it — why an evening built on ice serves almost nothing cold, and why the block is allowed to run out — is in Tangled Thistle’s menu concept and its Occasion Study.

Part of Hosting & Service.