Smoked haddock gratin

Smoked haddock & bacon gratin

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(11 ratings)

Prep: 15 mins Cook: 1 hr, 35 mins


Serves 6

Smoked fish, bacon, potatoes and crème fraîche are flavoured with onion and thyme and layered up in this comforting one-pot dish

Nutrition and extra info

  • Gluten-free

Nutrition: per serving

  • kcal346
  • fat13g
  • saturates7g
  • carbs35g
  • sugars4g
  • fibre4g
  • protein20g
  • salt1.9g
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  • small knob of butter



    Butter is a dairy product made from separating whole milk or cream into fat and…

  • 4 rashers smoked streaky bacon
  • 1 onion, finely sliced



    Onions are endlessly versatile and an essential ingredient in countless recipes. Native to Asia…

  • ½ small pack thyme, leaves only


    This popular herb grows in Europe, especially the Mediterranean, and is a member of the mint…

  • 1kg baking potatoes, washed and sliced
  • 350g skinless smoked haddock, cut into large chunks
  • 300ml half-fat crème fraîche
  • crisp green salad, to serve


  1. Heat oven to 200C/180C fan/gas 6. Heat the butter in a shallow flameproof casserole dish and sizzle the bacon until it changes colour. Add the onion and thyme and fry with the bacon for 5 mins until the onion is starting to soften. Lower the heat, add the potatoes to the onion and cover the pan. Steam-fry the potatoes for 25-35 mins until they soften, stirring occasionally to stop them sticking to the bottom of the pan.

  2. When the potatoes are ready, stir through the haddock, crème fraîche and a good grinding of black pepper, and mix until everything is combined. Flatten down with a fish slice and bake in the oven for 40 mins until golden. Serve with a green salad.

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Comments, questions and tips

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23rd Oct, 2018
I reduced the fish to 240mg and used 2 baking potatoes as it was for two people, was heavy on the thyme and when frying the onions and bacon (extra rashers) I crushed two garlic cloves that I removed after cooking. I mixed the fish with the potatoes, onions and bacon with the 300ml of reduced fat crème fraîche. Transferred to an oven dish and layered thinly sliced potato on top then grated on Parmesan before baking in the oven for 35 minutes until the top was golden brown. Only seasoned with black pepper, the bacon added enough salt. A really good recipe that I will do again.
22nd May, 2016
Needs a garnish on top otherwise it looks unappetising. Torn and wilted spinach ?
cook ordinaire
14th Jan, 2015
I cooked this last night. I have checked the recipe several times to see if I did something wrong!! Thank goodness I halved the ingredients. After really looking forward to it I found that the dish was cloying and really bland in spite of adding a little more bacon and seasoning.
Frantic Flapjack
22nd Dec, 2014
This cooked extremely well and made a lovely supper but because it has smoked haddock and smoked bacon, it is quite salty so don't be tempted to add extra salt. I used dried thyme which was fine. Served with carrots, peas and broccoli.
22nd Nov, 2014
Loved this, will be making it again and again. I will use more thyme and bacon next time though. Delicious!
9th Nov, 2014
Delicious, hearty and warming. Really easy for the weekend when you want something you can cook slowly in the late afternoon/early evening. Couldn't get fresh Thyme so used dried, tasted just fine.
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