Directions:
First work your butter into small rolls, wrapping each one carefully in a clean muslin cloth, tying them up with a string. Make a brine, say three gallons, having it strong enough of salt to bear up an egg; add half a teacupful of pure, white sugar, and one tablespoonful of saltpetre; boil the brine, and when cold strain it carefully. Pour it over the rolls so as to more than cover them, as this excludes the air. Place a weight over all to keep the rolls under the surface.