This section is from the book "Hand-Book Of Practical Cookery", by Pierre Blot. Also available from Amazon: Hand-Book of Practical Cookery, for Ladies and Professional Cooks.
These are unwholesome between April and September. They must be heavy, fresh, and of a mid-dling size. The very large ones are really inferior.
Soak them in water and wash well several times, then drain.
In Poulette, - Put them in a saucepan with a little parsley chopped fine, and set them on a pretty good fire; as soon as they are opened, remove the shell to which they are not attached, and keep them in a warm place.
For two quarts of muscles, put two ounces of butter in the saucepan in which they have been cooked and in which you have left their liquor; set on the fire, stir, and as soon as the butter is melted, add and stir into it a table-spoonful of flour; when turning a little yellow, add also half a dozen pepper-corns, then the muscles; boil gently about ten minutes, stirring occasionally; take from the fire, mix one or two yolks of eggs with it, a little lemon-juice, parsley chopped fine, and serve warm.
When clean, put them in a saucepan with a few slices of carrot, same of onion, two or three stalks of parsley, one of thyme, a bay-leaf, two cloves, six pepper-corns, and salt. Set on the fire, and take the muscles from the pan as soon as they open, then remove one shell; put them back in the pan, with as much white wine as there is liquor from the muscles; boil gently about ten minutes, add the yolk of an egg, a little lemon-juice, and dish the muscles; drain the sauce over them, add a little chopped parsley, and serve warm.
Fry, and serve the muscles like fried oysters. They may also be served like scalloped oysters.
Wash, boil in water and salt, and serve. They may be used, like craw-fish, to decorate fish after being boiled.
Wash well, and put two quarts of them in a saucepan with four onions in slices, two sprigs of parsley, one of thyme, a bay-leaf, two cloves, salt, pepper, half a pint of white wine, and two ounces of butter, just cover with water and set on a good fire; when properly cooked, drain, and serve warm with green parsley all around. The liquor may be used a second time.
 
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