Hot Pot.
Put into a deep bake-dish a layer of cold mutton left from your roast, freed from fat and skin and cut into strips two inches long by one wide. Overlay these with slices of parboiled potatoes, a little minced onion, an oyster or two chopped, some tiny bits of butter, with salt and pepper. Repeat this process until your meat is used up. The top layer should be potatoes. Add a cupful of gravy from Friday’s dinner (or elsewhere), cover very closely and bake one hour before lifting the lid. Peep in to see if the contents are done—they will be if your fire is tolerably strong. Turn out into a deep dish.