Cullen Skink
60 min · 10 steps
Medium: 31–60 min or 7–12 steps
About this dish
Smoked haddock poached directly in whole milk builds a deeply savoury, naturally smoky base that sets this authentic Cullen Skink apart from any ordinary chowder. A generous knob of cold butter stirred in off the heat gives the broth a silky, restaurant-quality richness that keeps you coming back for more.
Allergy Info
Dairy, Fish
Diet Info
Pescatarian
Ingredients
Fresh Produce
- Medium onionfinely diced1
- Medium leeks, white and pale-green parts onlyfinely sliced2
- Floury potatoes (such as Maris Piper or King Edward), peeledcut into 1.5 cm dice600 g
- Flat-leaf parsleyfinely chopped2 tablespoons
Fish & Seafood
- Undyed smoked haddock fillet, skin on600 g
Dairy & Eggs
- Whole milk700 ml
- Unsalted butter30 g
- Unsalted butter, to finishcold20 g
- Double cream150 ml
Tins & Jars
- Fish stock300 ml
Spices & Seasonings
- Bay leaf1
- Black peppercornswhole4
- Flaky sea saltto taste
- White pepperto taste
Utensils
- Wide shallow pan
- Fine mesh sieve
- Slotted spatula
- Large saucepan
- Potato masher
- Meat thermometer
- Ladle
- Chopping board
- Chef's knife
Method
Finely dice the onion, finely slice the leeks, peel and cut the potatoes into 1.5 cm dice, and finely chop the parsley. Set each aside separately.
Place the smoked haddock skin-side down in a wide, shallow pan. Pour over the whole milk and fish stock, add the bay leaf and peppercorns, and bring to a bare simmer over medium-low heat. Poach for 8–10 minutes until the fish flakes easily and is just cooked through — use a meat thermometer to check that the thickest part has reached an internal temperature of 63°C.
Lift the haddock out with a slotted spatula and set aside to cool slightly. Strain the poaching liquor through a fine sieve into a bowl, discarding the bay leaf and peppercorns. Reserve the liquor.
Flake the haddock into large, generous chunks, carefully discarding the skin and any pin bones. Set aside.
Wipe out the pan and melt the 30 g of butter over medium-low heat. Add the onion and leeks and cook, stirring occasionally, for 10–12 minutes until completely soft and translucent but not coloured.
Add the diced potatoes and pour in all of the reserved poaching liquor. Bring to a gentle simmer and cook for 15–18 minutes until the potatoes are completely tender when pierced with a knife.
Use a potato masher or the back of a large spoon to roughly crush about one-third of the potatoes directly in the pan. This thickens the broth while keeping the soup pleasingly chunky and textured.
Pour in the double cream and stir to combine. Return to a gentle simmer over low heat and cook for 3–4 minutes until the soup is creamy and slightly thickened.
Gently fold in the reserved haddock flakes and remove the pan from the heat. Stir in the remaining 20 g of cold butter until fully melted and the broth looks glossy. Taste and adjust seasoning with flaky sea salt and white pepper.
Ladle into warmed bowls and finish with a scattering of finely chopped flat-leaf parsley. Serve immediately with crusty bread or oatcakes.