Pork and spinach terrine

There are no tricks and no surprises to a terrine. It is a faithful kitchen friend to whom we should return time and again. Slice thinly and serve with a warm potato salad or quickly sautéed cabbage, or slice thickly and serve with a tumble of sharply dressed green leaves or just a few dill pickles or cornichons. Unbelievably, you will need two bunches of spinach to make one cup of cooked spinach.