Alternate layers of the salmon and the crumbled crackers in a well-greased baking dish, sprinkling each layer with salt, pepper, the finely chopped hard-boiled egg, and bits of butter or butter substitute, moistening with the white sauce. Finish with a layer of the fish, sprinkling it with the cracker crumbs dotted with butter. Bake in a moderate oven for 30 minutes, or until the top is well browned.
Foods That Will Win the War and How to Cook Them (1918).