Pressed Vegetable Terrine, Set in Its Own Stock

Roasted leek, carrot, celeriac, onion and mushroom packed in deliberately mismatched pieces and set in a clear vegetable stock, pressed overnight and cut into thick slabs.

September 3, 2026 By Rachel Anderson

Kitchen Kit

Pairing
Wine — A dry Grüner Veltliner with some weight to it — its white-pepper and celery register runs straight alongside the celeriac and the cracked pepper in the dressing, and it has the acid to survive a mustard vinaigrette, which most whites do not. Mixed drink — An Americano, long, over plenty of ice with an orange slice. The bitterness cuts 150 ml of oil in the dressing, it is low enough in alcohol to open a dinner rather than end one, and cold bitter against a cold savoury first course is one of the reliable pairings. Teetotaler — Cucumber and tarragon over ice: blitz and strain a cucumber, add a good pinch of salt, a squeeze of lime and a few tarragon leaves bruised in the glass, then top with soda. It picks up the tarragon leaves pressed against the sides of the terrine, and there is no sugar in it to fight the vinegar.

Tools
A digital scale for the agar, since brands vary and teaspoons of it are unreliable, four or five large roasting trays so every vegetable can go on its own (this is not fussiness — they finish at wildly different times and mushroom liquor on carrots wrecks both), a fine sieve or a square of muslin to get the stock genuinely clear, a whisk and a pan you can hold at a rolling boil for two full minutes, a 1.5-litre terrine mould or a straight-sided loaf tin, cling film long enough to overhang all four sides, a piece of card cut to fit the top, 1 to 1.5 kg of weight (two tins of tomatoes is exactly right), 12 hours of fridge space at 5°C or below, and a long thin knife you can wipe between slices

Ingredients · swaps in parentheses
Leeks, carrots, celeriac, onions and chestnut or portobello mushrooms (parsnip, fennel, squash, salsify and roasted garlic all slot in — beetroot is the one firm no, because it bleeds into the gel within two hours and gives you a pink terrine with pink stock, which destroys the only idea the dish has), olive oil, fine sea salt, a well-flavoured vegetable stock strained until it is properly clear, agar-agar powder (18 g of leaf gelatine sets softer and frankly tastes nicer, but it melts at body temperature so it cannot sit on a warm table for an hour, and it stops the dish being vegetarian), flat parsley and tarragon, and for the dressing cider vinegar, coarse-grain mustard, cold-pressed rapeseed or a mild olive oil and a lot of coarsely cracked black pepper

Magic
The dressing only ever touches the outside of a slab, so the middle of a slice tastes of roasted vegetable and clear stock and nothing sharp at all. Fix it while you are packing the mould: scatter a couple of tablespoons of small capers, rinsed and patted properly dry, and the zest of two lemons between the layers, so the acid is built into the slice rather than poured on it. Rinsing and drying the capers matters — loose brine sitting against agar softens the gel in patches — and zest rather than juice keeps the stock's pH where it needs to be to set hard. What you get is a cold slab that is calm for two bites and then hits a burst of salt and citrus, which is what stops a vegetable terrine being worthy. Rather not gamble on a set you cannot check until tomorrow? Chop the same capers fine into the dressing instead: same flavour, none of the surprise.

Before you begin
Everything rests on how dry the vegetables are going in. Coloured at the edges, slightly collapsed, dry to the touch — if a piece still weeps when you press it with a spoon it goes back in the oven, because that water leaches out overnight, clouds the gel and slumps the terrine on the board. The other reliable failure is the agar: it does not hydrate below boiling, so hold it at a genuine rolling boil for two full minutes, then let it drop to about 70°C before pouring — boiling stock greys the top layer of vegetables, and below 40°C the agar starts setting in the jug. Season the hot stock until it tastes slightly too salty, because cold food always reads under-seasoned. Vegetables must be completely cold before they go in the mould, the press needs 12 hours minimum, and it comes out of the fridge 40 minutes before service: at 4°C this tastes of absolutely nothing.

A first course that arrives already made, needs no plating, sits happily at 57°F for an hour and looks like nothing else on any table this year. Roasted vegetables, cut in deliberately unmatched pieces, packed into a mold and set in a clear stock, then pressed overnight. Sliced across, every slab shows fragments of different colors and different origins held together by a visible transparent join, and no two slices are alike.

The thing that decides whether it works is how dry the vegetables are when they go in. Roast them properly, until they have given up their water and caught color at the edges, and the terrine sets clean and slices like a brick. Steam or boil them, or roast them timidly, and the water leaches into the stock overnight, the gel goes cloudy and weeps, and the whole thing collapses on the board.

Yield and timing

Yield: one 1½-quart terrine, which is 24 slabs at about ⅝ inch. Written for a table of 24 as a shared first course.

Time: 1 hour 20 active, 1 hour roasting, then a minimum 12-hour press. Make-ahead: make it two days out. It cannot be made on the day.

Vegan as written, and gluten-free as written.

Ingredients

4 medium leeks, white and pale green only, halved lengthways
1 lb 2 oz carrots, mixed sizes, peeled, cut into irregular lengths and wedges
1 celeriac, about 1½ lb, peeled and cut into ¾ inch slabs and chunks
3 onions, peeled and cut into thick wedges through the root so they hold
14 oz chestnut or portobello mushrooms, halved
¼ cup olive oil
2 teaspoons fine sea salt, for roasting
1¼ quarts well-flavored vegetable stock, strained until genuinely clear
⅓ oz agar-agar powder (about 4 teaspoons — weigh this, because brands vary and volume is unreliable)
¾ teaspoon fine sea salt, for the stock, plus more to taste
A handful of flat parsley and tarragon leaves, whole

For the dressing, served separately

¼ cup cider vinegar
2 tablespoons coarse-grain mustard
⅔ cup cold-pressed rapeseed or a mild olive oil
¾ teaspoon fine sea salt, a great deal of coarsely cracked black pepper

Method

Heat the oven to 425°F. Toss each vegetable separately with oil and the roasting salt and roast on separate trays — separate matters, because they finish at wildly different times and because you do not want the mushroom liquor on the carrots. Leeks 25 minutes, carrots 30, celeriac 35, onions 35, mushrooms 20.
Roast each one until it is properly done: colored at the edges, collapsed slightly, dry to the touch rather than glossy with its own juice. If a piece still weeps when pressed with a spoon, it goes back in. This is the step the whole recipe rests on.
Cool everything on the trays, spread out, not stacked. Warm vegetables in a mold will melt the gel as you pour.
Line a 1½-quart terrine mold or loaf pan with plastic wrap, leaving a long overhang on all sides.
Pack the vegetables in, in layers, mixing colors and shapes deliberately rather than arranging them neatly. Push pieces of different vegetables against each other. Slide the odd whole parsley or tarragon leaf against the side of the mold, where it will show. Press down firmly as you go — you want the mold dense, with the gaps small, because the stock is a join and not a filling.
Bring the stock and agar to the boil in a pan, whisking, and boil for a full 2 minutes. Agar does not hydrate below boiling and a terrine that fails to set almost always failed here. Season the stock hard — it should taste slightly too salty hot, because cold food reads under-seasoned.
Let it cool for 3 to 4 minutes, to about 160°F, then pour it slowly into the mold, in stages, tapping the tin on the counter between pours so the liquid finds its way down through the vegetables and the air comes up. Fill to the top. Agar starts to set at around 104°F, so do not dawdle, and do not pour it boiling either, or the top layer of vegetables cooks and grays.
Fold the plastic wrap over, lay a piece of card cut to fit on top and weight it with 2¼ to 3¼ lb — two tins of tomatoes is exactly right. Refrigerate at 41°F or below for at least 12 hours and up to 48.
Whisk the dressing ingredients together. Keep it in a plain glass pitcher, refrigerated.
To serve, turn out onto a board and cut with a long thin knife, wiped between slices. Cut thick: ⅝ inch, so each slab holds itself together on the way to the table.

Make-ahead

Two days out is ideal, and the day before is the minimum. It genuinely improves on day two as the stock takes on flavor from the roasting. Roast the vegetables up to three days ahead and keep them covered in the fridge; build and set the terrine no more than 48 hours before service. Keep it at 41°F or below throughout, and treat it as a fresh cooked dish rather than a preserve — check your own food authority’s guidance on how long you are happy holding cooked vegetables cold, and do not push it past two days to save a trip to the shops.

Holding and service

Take it out of the fridge 40 minutes before service. Serve at about 57°F, not fridge-cold: at 39°F the whole thing tastes of nothing, and one of the reliable failures of a cold first course is that somebody serves it straight from the door of the refrigerator.

Agar’s advantage over gelatine here is that it does not melt in a warm room; it holds its shape up to about 140°F, so a plate of terrine sitting on a candlelit table for an hour stays sliced rather than sagging. At hour two the cut faces have dried very slightly and darkened, which looks fine. Past three hours it stops being worth serving and should be cleared.

The dressing goes to the table in a plain glass pitcher and people dress their own slice. That is not a service flourish; the dinner this belongs to is served on repaired ceramics, and vinegar does not go into a mended vessel.

Scaling

Vegetables and stock multiply straight. Agar does not quite: it works on the weight of liquid, so keep it at ¼ oz per quart of stock however much you make, and do not scale it by the number of vegetables.

The mold does not scale. A terrine deeper than about 4 inches compresses under its own weight into a dense band at the bottom and a loose one at the top, and it will not slice evenly. Above 24 covers, make two or three molds rather than one large one. The other hard limit is oven space: roasting vegetables for 75 people is six to eight tray-loads and about three hours of an oven you also need for other things. At that count, roast the day before.

Substitutions

Gelatine instead of agar: ⅝ oz of leaf gelatine, softened in cold water and dissolved into the hot (not boiling) stock. It sets softer and more tender and is nicer to eat — but it melts at body temperature, so it will not survive an hour on a warm table, and it stops the dish being vegetarian. Use it only if the terrine goes out and comes straight back.
Different vegetables: parsnip, fennel, squash, salsify and roasted garlic all work. Beets do not, and this is the one firm no: it bleeds into the gel within two hours and you get a pink terrine with pink stock, which destroys the entire point, which is that the pieces are visibly separate.
No terrine mold: a loaf pan, or a plastic food box with square corners. Anything with a flat base and straight sides.

Why it belongs at this dinner

This is the first course for The Gold Is in the Cracks, Tangled Thistle’s Occasion Study No. 26, which is a dinner served on ceramics that broke and were repaired, in a credited homage to kintsugi.

It is the one dish on that menu that borrows structurally from the source, and it is worth saying what it borrows plainly. In kintsugi there is a repair called yobitsugi, the joint-call, in which a missing piece is replaced by a fragment cut from a completely different vessel and the two are not made to match. This terrine is that arrangement, in vegetables: unmatched pieces, a visible clear join, nothing pretending to be uniform. A borrowed structural idea, credited once, used once, and not explained at the table. The full design is Nothing Here Soaks Overnight.

Developed on paper against established technique rather than cooked repeatedly in a test kitchen. Salty & Clever’s standing note on method and AI applies.

Part of Recipes & Technique.