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I saw haddock on sale at our local grocer. It's really cheap this week. It grew my curiosity.

Are there any similarities between haddock and cod as in flavor?

I often see haddock and cod interchangeably used in the context of fish and chips.

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I always though that haddock was a smaller version of cod. Still, even though "Cod: A Biography of the Fish that Changed the World" is one of my favourite books, I am not sure enough about it to present this as an actual answer. –  Doug Aug 5 '11 at 19:09
Interesting. I'll take a look at that book though. Thanks for the recommendation. –  chrisjlee Aug 5 '11 at 19:23
And I still haven't located 'Finnan Haddies', haddock in a can which my gran used to use to make her chowder. She was born in Simcoe county in Ontario –  Doug Aug 6 '11 at 6:09

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Haddock and Cod are two quite different fish. However, they can be used interchangeably in many fish recipes. So if you want to substitute one for the other you can easily do so. When cooked, many people can't easily tell them apart. Even large food producers and supermarkets get them mixed up.

...Three of the 59 samples purchased from Asda failed to contain the right fish. Its cod fishcakes actually contained haddock whilst a haddock pie and a haddock fillet were made using Atlantic cod.

At Waitrose two out of 28 samples tested were mislabelled. One of them, a mini smoked haddock pie offering ‘flaked North Atlantic haddock’, actually contained cheap Pacific cod.

Read more: http://www.dailymail.co.uk/news/article-1380164/Mislabelled-fish-products-Asda-Tesco-Sainsburys-Morrisons-Waitrose-Lidl.html#ixzz1UCukDoa2

The main points where they may be treated differently are in long term storage. Haddock is not usually salted where as cod is. Haddock can easily be dried or smoked.

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Thanks! that was a great answer. –  chrisjlee Aug 7 '11 at 16:53

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