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Nov 2, 2007 08:24 AM

Shellfish Demi Glace? Is there such a thing?

I read somewhere that you can buy shellfish demi glace? Has anyone heard of this? Does anyone know where to buy this? Thanks!

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  1. In a word, no. That being because overcooking fish and shellfish will impart a bitter flavour and demi is generally cooked and reduced for many hours.

    Again that being said the basic process of making a lobster or crab bisque would result in a rich seafood stock.

    Crushing / pulverizing the shells makes all the difference.
    Here is a great how to:

    1 Reply
    1. re: Mila

      More Than Gourmet has a product called glace de fruit de mer, it is a combination of fish and shellfish that is quite good it has some added gelatin I think and natural gelatin from fish bones. It has a nice flavor and the aroma of a nice lobster stock. You can make a reduction of the lobster stock that Mila mentioned and use that in small quantities because it can be strong.