Buyer's guide
Perhaps more so than any other offal, kidneys need to be very fresh as they deteriorate quickly, taking on a bitter, tainted flavour. Building up a relationship with a good butcher or local producer is your best bet for procuring fresh kidneys. Try and buy them whole, as opposed to ready diced, whenever possible.
Preparation
Pan-frying whole or thickly-sliced kidneys and finishing with a sauce of pan juices, sherry and cream, (in the style of devilled kidneys), makes a quick meal. Alternatively, slices of kidney can be stewed or braised, such as in a steak and kidney pie.
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