snowynight

Ingredients:
Any remains of cold cod, oysters, melted butter sufficient to moisten, mashed potatoes enough to fill up the dish.

Flake fish from the bone and take all the skin away. Lay in a pie dish, pour over it the melted butter and oysters with sauce; cover with mashed potatoes. Bake for half an hour, and send to table of a rich brown color.
Instead of melted butter use cream, if preferred

From Mrs. Welch's Cook Book (1884) by Mary B. Welch. This is the first book on home economics as a school subject