Wash well six medium-sized, sound potatoes; cut them into quarters, pare them neatly, clove-garlic-shaped; wash again, drain, and place them in a saucepan. Cover with water, throw in a heavy pinch of salt, put the lid on, and cook for twenty minutes. Drain, and put them in a saucepan, with an ounce of butter, a pinch of chopped parsley, heat slowly for five minutes, toss gently, and serve.