Have a hardwood board one and a half or two inches thick. Split the shad as for broiling, place it on the board with the skin side down, and fasten with a few tacks; place the board before the fire, and roast until done; rub it from time to time with a little butter. The plank should be well-seasoned, and be heated before placing the shad on it, or it will impart the flavor of the wood to the fish.
A substitute for this mode of cooking is to put into a baking-pan a tablespoonful of drippings; when very hot lay in the shad with the skin side up, place it under the coals, and when the skin is puffed and blistered it is done. Turn it onto a hot dish, dredge with salt and pepper, cover with bits of butter, and serve with quarters of lemon.