Stock & Fond Atlas · Sauce
Fumet de Poisson
- Intermediate
- 35 min
- roughly 2 of 4 for cost
Leads with savory depth stacked from the pantry’s bass notes, richness that coats and comforts, with a clean, bright snap.
Ingredients
- 1.5 kg flat fish bones and heads (sole, turbot, whiting), gills removed
- 40 g butter
- 200 g onion, sliced thin
- 100 g leek white, sliced
- 80 g button mushroom trimmings, sliced
- 250 ml dry white wine
- 2 litres cold water
- 4 parsley stalks
- 1 bay leaf
- 6 white peppercorns
Equipment
Fine sieve
The skills inside
Reducing a sauceSweating aromatics: soft, never brownedStraining & passing through a sieve
The words inside
Allergen screen
Found: dairy · fish · alcohol
Screened for: gluten, dairy, egg, nuts, peanuts, fish, shellfish, molluscs, soy, sesame, celery, mustard, lupin, alcohol. Not screened: sulphites.
Screened by keyword from the ingredient list, not reviewed by a person; check every label for what the list cannot show.
Method
- Soak the bones 20 minutes in cold water, pulling out the gills and the dark blood line along the spine, then drain well. 20 min
- Sweat the onion, leek and mushroom in the butter under a lid over low heat for 8 minutes, until glassy and smelling sweet with no colour anywhere. 8 min
- Add the bones and stir 5 minutes, until the scraps of flesh have turned opaque white, then pour in the wine and reduce by half. 5 min
- Cover with the cold water, bring to 85C (185F), skim once, and hold there exactly 20 minutes. 20 min
- Strain through muslin without pressing and cool immediately. A pressed fumet turns cloudy and stays cloudy.
How to tell it is going right
This dish has no standard of its own yet. It is judged on the techniques it exercises: checked at the pan, while there is still something to be done about it.
Reducing a sauce 95 recipes
- A steady simmer with the surface moving, never a rolling boil that throws it up the sides and scorches what is left on the base.
- Judged by behaviour rather than the clock: it coats the back of a spoon and holds a clean line when a finger is drawn through it.
- The drop in volume is visible against the side of the pan: there is a line to see, not a guess about whether anything has happened.
- Seasoned at the end and not the beginning, because salt concentrates at exactly the rate everything else does.
- Nothing is catching underneath: a spoon drawn across the base comes up clean, with no browned film building where the heat is fiercest.
Where it goes wrong It was seasoned at the start and then reduced by half. The salt concentrated along with everything else, so the sauce reaches perfect body and is too salty to serve. And the only remedy is to dilute it and reduce it all over again.
Straining & passing through a sieve 148 recipes
- Nothing solid got through: a finger drawn through what came out finds no fibre, seed, skin, curd, or grit.
- Where the dish wants body it was worked through rather than left to drip, and the solids left in the mesh are spent and dry rather than still holding liquid worth having.
- It is judged on the tongue rather than by eye: smooth, with no residual grain left behind after the mouthful has gone.
- The mesh was fine enough for the job and held its shape, and nothing bypassed it by going over the rim.
- The yield is close to what went in less the spent solids: not half of it abandoned in the sieve because it stopped running and nobody pushed.
Where it goes wrong It was pushed through a mesh too coarse for it, or the sieve was overloaded and slopped at the rim, so the fibres it was meant to remove are in the finished sauce and it reads grainy on the tongue.
At the Table
- The Pour
- Vermentino or Sauvignon Blanc
- Also Right
- Albariño
- From the Taps
- Witbier
- Zero-Proof
- Sparkling water with citrus
Lean fish, bright acid, done: coastal whites built beside the same boats; the fresher the fish, the leaner the pour.
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