An excellent way to Pickle Mushrooms, to preserve the flavour.
Buttons must be rubbed with a bit of flannel and salt; and from the larger, take out the red inside, for when they are black they will not do, being too old. Throw a little salt over, and put them into a stewpan, with some mace, and pepper. As the liquor comes out, shake them well, and keep them over a gentle fire till all of it be dried into them again; then put as much vinegar into the pan as will cover them; give it one warm, and turn all into a glass or stonejar. They will keep two years, and are delicious.