These may be cooked gently in a little hot butter in a frying-pan putting the underneath side downwards at first and then turning it over and doing the other; serve very hot.
By this method the flavour of the kippers is too strong for some people who like to put them into a pan, and pour boiling water over them; they are then just boiled up to heat through thoroughly, lifted out, drained, spread with a little butter and put in the oven for a few minutes.