To Mold Butter. A pair of wooden butter pats is necessary for this. Dip these first into hot water, then into cold. Cut off a square piece of butter, enough for one person, make it flat or round with two knives, and then roll it into shape between the butter pats. Chill, and serve in a dish on ice; or give one to each person on a butter plate, just at the last moment before serving the meal. Never serve soft butter.