British & Irish Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. 
Serving Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. Cullen Skink
Scotland's beloved, smoky smoked haddock chowder — thick, creamy, and deeply warming, with potatoes, leeks, and a gentle hit of the sea.
Contains common allergens
In the app, Listahan checks these against your household automatically.
Instructions
6 steps- 1
Poach the fish: Place the smoked haddock in a wide pan. Cover with the milk and water (or stock). Bring to a very gentle simmer and poach for 5 minutes until the fish flakes easily.
- 2
Flake the fish: Carefully remove the haddock from the liquid with a slotted spoon. Reserve the poaching liquid. Once cool enough to handle, peel away the skin, check for bones, and flake the flesh into large chunks.
- 3
Sauté the onion: In a separate large heavy-based pot, melt the butter over medium heat. Add the finely chopped onion and gently fry for 5-8 minutes until soft and translucent, but not browned.
- 4
Cook the potatoes: Add the diced potatoes to the onions. Pour over the reserved poaching liquid. Bring to a simmer, cover, and cook for 15-20 minutes until the potatoes are very tender.
- 5
Thicken the soup: Take a potato masher and lightly crush about half of the potatoes directly in the pot. This naturally thickens the soup to a creamy consistency.
- 6
Finish and serve: Gently stir the flaked smoked haddock back into the pot and simmer for 2 minutes to heat through. Season with plenty of black pepper (you probably won't need salt). Serve hot, garnished with chopped chives.
Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. Listahan Family Score™
65/100
Works for many families
Score reflects how well this recipe fits a typical busy household. In the app, your Family Score is personalized to your household's allergens, kids, and pantry.
Nutrition
per serving195
Calories
6 g
Protein
24 g
Carbs
9 g
Fat
Estimated per serving. Actual values depend on the brands and portions you use.
Listahan cooking guide
Chef notes & practical guide
Technique notes, ingredient swaps, serve-alongside ideas, storage guidance, and equipment for this recipe.
Cultural context
Cullen skink takes its name from the fishing town of Cullen on Scotland's Moray coast, where smoked-fish chowders like this one were an ordinary way to use the local catch; 'skink' is an old Scots word for a stock or broth, later applied loosely to any thick soup. Similar smoked-fish soups exist elsewhere in Scotland and England, but Cullen is the one that kept its name attached.
Listahan note
This version poaches the haddock gently in milk and water rather than dropping it straight into a simmering pot, so the fish flakes cleanly and the poaching liquid becomes the base of the soup instead of being discarded.
Technique cues
- Poaching the smoked haddock at a bare simmer for about five minutes is enough to cook it through; a hard boil toughens the flesh and can make it fall apart into shreds.
- The reserved poaching liquid carries the smoky flavor straight into the soup base, so using fresh milk instead would leave the finished soup noticeably thinner in flavor.
- Softening the onion in butter for five to eight minutes without browning keeps the soup's flavor mild and creamy rather than caramelized and sweet.
- Waxy potatoes hold their shape at a simmer, giving the soup body without dissolving into the broth the way a starchier variety would.
Kitchen flow
- Parallel prep
- While Cullen Skink simmers, chop any garnish or side bread — the pot doesn't need active attention during the long simmer. This one leans on the undyed smoked haddock fillet. Everything else is quick — the smoke is the one step that takes real time.
- Make-ahead
- Cullen Skink is a genuine make-ahead dish — it actually tastes better the next day once undyed smoked haddock fillet have had time to meld; make it a day early and reheat gently.
- Leftover move
- Leftover Cullen Skink is often better the next day — refrigerate and reheat gently on the stove, thinning with a splash of water or broth if it's thickened. This one leans on the undyed smoked haddock fillet. Everything else is quick — the smoke is the one step that takes real time.
- Cleanup rhythm
- Let the pot for Cullen Skink soak while you eat — a long simmer tends to leave a stuck layer on the bottom that's easier to lift once soaked. This one leans on the undyed smoked haddock fillet. Plan around the smoke; that's the slow part.
Ingredient brief
Role, handling, and swap guidance for each key ingredient.
400g undyed smoked haddock fillet
Flavor support
Purpose: g undyed smoked haddock fillet supports the balance of Cullen Skink and should taste integrated.
Handling: Prep before heat is high so the cooking step can move without rushing.
Adaptation: Use the closest fresh equivalent and expect a modest shift in flavor or texture.
1 large onion
Aromatic base
Purpose: large onion creates the savory foundation before stronger ingredients are added.
Handling: Wash, trim, and cut evenly so the pieces cook at the same pace.
Adaptation: Use the closest fresh equivalent and expect a modest shift in flavor or texture.
400g waxy potatoes
Structural base
Purpose: g waxy potatoes defines the shape and texture of the dish.
Handling: Wash, trim, and cut evenly so the pieces cook at the same pace.
Adaptation: Use the closest fresh equivalent and expect a modest shift in flavor or texture.
300ml whole milk
Richness and texture
Purpose: ml whole milk rounds the texture and helps the dish feel complete.
Handling: Prep before heat is high so the cooking step can move without rushing.
Adaptation: Use unsweetened dairy-free alternatives only where they still provide enough fat and body.
300ml water or fish stock
Main protein or body
Purpose: ml water or fish stock gives Cullen Skink its main substance and carries the seasoning.
Handling: Pat dry, cut evenly, and season before cooking so browning or sauce coverage is consistent.
Adaptation: Use a non-seafood protein only with adjusted seasoning and cooking time.
Technique notes
- Check carefully for pin bones while flaking the poached haddock — the smoking process makes them harder to see than in fresh fish.
- A final scattering of chives just before serving adds a fresh, sharp note the rest of the soup doesn't have on its own.
- This soup thickens as it sits, so thin leftovers with a splash of milk when reheating rather than serving it stiff from the fridge.
Ingredient swaps
- Dairy-free direction
- Swap the butter for full-fat coconut milk or a dairy-free cream alternative, added at the end rather than simmered long — the texture shifts slightly but the dish holds together. This one leans on the waxy potatoes.
- Seafood-aware direction
- Replace the water or fish stock with a vegetarian fish-sauce alternative or extra soy sauce and a pinch of dried seaweed for umami to keep the savory depth without any fish or shellfish. This one leans on the waxy potatoes.
- Lower-sodium direction
- Use a low-sodium or no-salt-added version of the water or fish stock, then season to taste with fresh herbs, citrus, or vinegar at the end instead of more salt. This one leans on the waxy potatoes.
- Weeknight shortcut
- For a faster version, prep the longest-cooking component a day ahead so the night-of cook is mostly assembly and finishing. This one leans on the waxy potatoes.
Serve alongside
- Steamed rice
- Cucumber salad
- Roasted vegetables
- Pickled vegetables
- Iced tea
- Sparkling water with citrus
Serving suggestions only — check pairings for your household's allergens.
Storage & reheating
- Refrigerate in a sealed container for up to 4 days.
- Reheat gently with a splash of water, broth, milk, or sauce as appropriate.
- Freeze up to 2 months when the texture is braised, baked, or stew-like.
Equipment
- Dutch oven or soup pot
- Wooden spoon
- Ladle
Make this household-aware
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Plan it in Listahan
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