Fish Sauce
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Ingredients
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1-1/2 oz. of cayenne, 2 tablespoonfuls of walnut ketchup, 2 tablespoonfuls of soy, a few shreds of garlic and shalot, 1 quart of vinegar.

Method
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Put all the ingredients into a large bottle, and shake well every day for a fortnight. Keep it in small bottles well sealed, and in a few days it will be fit for use.

Source: Mrs Beeton's Book of Household Management (1861)
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