Cook Potatoes In Boiling Water For 30 Minutes. Drain Well. Combine Potatoes Milk And Yogurt. Add Margarine, Salt And Pepper. Beat At Medium Speed In Electric Mixer For About 1 Minute. Protein 2.6 / Carbohydrate 15.9 / Cholesterol 0 / Iron 1.1 Sodium 96 / Calcium 34