Kabeljauw met Witte Saus

• Cod fillets, skinless 600g (1.3 lb, 4 fillets)

  Thick fillets poach best; thin tails overcook before the sauce is ready. Substitute: Haddock or hake fillets, same weight.

  How to choose: Thick, pearly-white fillets with no grey patches and no fishy smell

  How to prepare: Rinse, pat dry, season lightly with salt and white pepper

  Required
• Potatoes, floury 600g (1.3 lb, about 4 medium)

  Boiled whole, then buttered; they soak up the white sauce. Substitute: Waxy potatoes, same weight, boiled a little longer.

  How to choose: Firm, floury potatoes with no green patches or sprouts

  How to prepare: Peel and cut into even chunks

  Required
• Unsalted butter 40g (1.4 oz, about 3 tablespoons)

  The base of the white sauce roux. Substitute: Salted butter, same weight, and skip the salt.

  How to choose: Pale, sweet-smelling butter

  How to prepare: Cut into cubes

  Required
• Plain flour 30g (1 oz, about 3 tablespoons)

  Thickens the sauce; cook it out so the sauce never tastes floury. Substitute: Cornflour, 15 g, for a gluten-free sauce.

  How to choose: Fine, white plain flour

  How to prepare: Measure out

  Required
• Whole milk 300ml (1.25 cups)

  The body of the white sauce. Substitute: Semi-skimmed milk, same amount, for a lighter sauce.

  How to choose: Fresh whole milk

  How to prepare: Warm gently so it blends into the roux without lumps

  Required
• Double cream 100ml (about 1/2 cup)

  Makes the sauce silky and rich. Substitute: Single cream, same amount, for a lighter sauce.

  How to choose: Fresh double cream

  How to prepare: Measure out

  Required
• Fish stock 200ml (about 3/4 cup)

  Adds a gentle sea flavour to the sauce. Substitute: Light chicken stock, same amount.

  How to choose: Low-salt fish stock if possible

  How to prepare: Measure out

  Required
• Dijon mustard 10g (0.4 oz, 2 teaspoons)

  Sharpens the sauce and lifts the richness. Substitute: 1 teaspoon wholegrain mustard.

  How to choose: Smooth Dijon mustard

  How to prepare: Measure out

  Optional
• Lemon 1 lemon, juiced (15ml / 1 tablespoon)

  A squeeze at the end brightens the whole sauce. Substitute: Half a tablespoon of white wine vinegar.

  How to choose: Heavy for its size, thin skin

  How to prepare: Halve and juice

  Required
• Fresh parsley, chopped 10g (0.4 oz, about 2 tablespoons)

  Fresh green finish on the plate. Substitute: Chives, same weight.

  How to choose: Bright green, flat-leaf parsley if possible

  How to prepare: Wash, dry and chop finely

  Optional
• Salt 3g (about 1/2 teaspoon)

  Seasons the fish and the sauce. Substitute: Fine sea salt, same weight.

  How to choose: Fine, free-flowing salt

  How to prepare: Measure out

  Required
• White pepper 1g (about 1/4 teaspoon)

  Seasoning that keeps the sauce white. Substitute: Black pepper, same weight.

  How to choose: Freshly ground white pepper

  How to prepare: Measure out

  Optional

Estimated cost: Medium — about $4–5 per serving at home (USD)

info Cooked the traditional way: cod poached gently in a butter, flour, milk and cream sauce, never boiled, with boiled potatoes.

Execution Methodology & Culinary Technique

1. 1

   Boil the potatoes

   18 Mins Boiling water, 100°C (212°F)

   Put the potato chunks in a pot of cold salted water, bring to the boil and cook for 15 to 18 minutes until tender. Drain well and keep warm with the lid on.

   Start the potatoes in cold water, not boiling: they cook evenly from the outside in and do not fall apart.

   Done when: A knife slides through a chunk with no resistance; the potatoes are fluffy, not waterlogged.

2. 2

   Make the white sauce

   8 Mins Gentle simmer, about 95°C (200°F)

   Melt the butter in a wide pan over medium heat, stir in the flour and cook for 1 minute, stirring constantly, until it smells nutty. Take the pan off the heat and whisk in the warm milk, cream and fish stock a little at a time, then return to the heat and simmer very gently for 5 minutes, stirring, until the sauce coats the back of a spoon.

   If the sauce does lumps, push it through a sieve: it will be perfectly smooth again in seconds.

   Done when: A smooth, glossy sauce that coats a spoon and leaves a clean line when you draw a finger through it.

3. 3

   Poach the cod in the sauce

   10 Mins Gentle simmer, about 95°C (200°F); fish centre 63°C (145°F)

   Season the cod fillets and slide them into the simmering sauce in a single layer. Cover and poach gently for 8 to 10 minutes, spooning sauce over the fish once or twice. The fish is done when it flakes easily at the thickest part and the centre reaches 63°C (145°F).

   Do not stir the fish once it is in the sauce: a spoon will break the fillets apart. Spoon sauce over them instead.

   Done when: Opaque white flesh that flakes cleanly with a fork; centre 63°C (145°F).

4. 4

   Finish with mustard and lemon

   2 Mins Off the heat

   Take the pan off the heat and stir in the mustard and lemon juice, then taste and adjust the salt and white pepper. The sauce should be silky, gently sharp and well seasoned, never floury.

   Add the lemon off the heat: lemon juice in a boiling sauce can make the cream split.

   Done when: A silky sauce with a gentle mustard warmth and a bright lemon finish.

5. 5

   Plate with potatoes and parsley

   2 Mins Serve hot

   Put a fillet on each plate with a spoonful of potatoes, ladle the white sauce generously over the fish and potatoes, and scatter with chopped parsley. Serve at once.

   Warm the plates first: a cold plate cools the sauce and it thickens before anyone has eaten.

   Done when: Hot fish under a glossy white sauce, with parsley scattered over the top.

vital_signs Nutritional Physiology & Benefits

Nutrition

Nutrition values are estimated — calculated from USDA FoodData Central values for the listed ingredients.

Vitamins & minerals: Provides vitamin B12, selenium and iodine from the cod, calcium from the milk and cream, plus vitamin C from the lemon and parsley.

restaurant Food Pairings

What to Eat With

To optimize nutrient absorption and elevate the sensory depth, pair with these authentic accompaniments:

warning Digestive Guardrails

What NOT to Combine

To prevent digestive distress, sluggishness, or palate clash, avoid pairing the dish with these elements:

General information only, not medical advice — consult a doctor for personal dietary decisions.

Who Should Eat It

Who Should Eat

• General adultsA gentle, satisfying dinner — lean fish in a creamy sauce with potatoes, easy to enjoy and easy on the stomach.
• ChildrenChildren like the mild, creamy sauce; check the fillets carefully for bones and serve a small fillet with plenty of mashed potato.
• ElderlySoft, easy to chew and easy to digest — a good choice, though the sauce is rich, so a modest portion is enough.
• Pregnant womenGenerally suitable if the fish is cooked right through to 63°C (145°F); cod is a low-mercury fish — ask your clinician.
• Breastfeeding womenGenerally suitable; the lean protein and calcium from the milk are useful, but the sauce is rich — a modest portion is wise.
• AthletesAbout 34.1 g of protein a serving makes it a strong post-training meal, with potatoes for recovery carbohydrates.
• Weight gainA good choice — the creamy sauce and potatoes make each serving energy-dense, and a second helping adds easy calories.
• Weight lossAt 490 kcal a serving, this is a moderate meal: take one fillet, go easy on the sauce, and fill the plate with the potatoes and a green salad.

Health Conditions — Adjust or Avoid

Conditions

• DiabetesAbout 40.8 g of carbohydrate a serving, mostly from the potatoes — keep the potato portion modest and balance the plate with salad; ask your clinician.
• High blood pressureAt about 552 mg of sodium a serving, this is moderately salty — use less salt in the sauce and skip extra butter; ask your clinician if you are on a sodium limit.
• Kidney diseaseHigh in protein and moderately salty — eat in small portions; ask your clinician.
• GoutEat occasionally and in small portions — white fish is lower in purines than oily fish, but the portion still matters; ask your clinician.
• Stomach issuesA mild, gentle dish, but the rich cream sauce can trigger reflux — eat a small portion and avoid eating late at night; ask your clinician if symptoms persist.
• Cardiovascular diseaseLean fish is a good choice, but the butter and cream add saturated fat — go easy on the sauce and balance it with green vegetables; ask your clinician.
• Fatty liverThe fish is lean, but the butter-and-cream sauce is rich — keep it occasional and the portion small; ask your clinician.
• Food allergiesContains fish, milk (butter, milk, cream) and gluten (flour in the sauce). May contain mustard — check labels. Not suitable for a dairy-free diet.
• Special therapeutic dietsContains dairy and gluten, so it fits few therapeutic diets — ask your clinician or dietitian before eating it regularly.

If you have a medical condition, consult your doctor before changing your diet.

kitchen Storage & Use

Storage & Use

How to store

Cool quickly and store the fish in its sauce and the potatoes in separate airtight containers.

In the fridge

Cooked fish in sauce 2 days; potatoes 2 days.

In the freezer

Cooked fish in sauce 1 month; the sauce may separate slightly on thawing.

How to reheat

Reheat gently in a pan over low heat until the centre reaches 74°C (165°F), stirring the sauce as it warms; do not boil.

Freezing recommended

Only the fish in sauce, for up to 1 month; the potatoes freeze poorly and are best made fresh.

Signs it has spoiled

Sour or off smell, slimy fish, or a grey colour on the flesh.