Mustard Potatoes
["6 or 8 medium potatoes", "1/2 c. butter or margarine", "1/2 tsp. salt", "1/8 tsp. pepper", "1/4 c. prepared mustard"]
["Peel and slice thin.", "Mix other ingredients together.", "Put 1/2 of potatoes in bottom of pan.", "Pour half mix on top.", "Add other half of potatoes and the balance of mixture.", "Cook, uncovered, for 1 hour at 400\u00b0."]
["potatoes", "butter", "salt", "pepper", "prepared mustard"]