Mashed 3 Potatoes With Scallions(Excellent For Holidays)  
["2 c. cubed yams", "2 c. cubed sweet potatoes", "4 c. cubed potatoes", "2/3 c. chopped scallions", "1 Tbsp. plus 1/2 tsp. salt", "1/4 c. heavy cream", "2 Tbsp. butter", "1/4 tsp. pepper", "1/4 tsp. nutmeg"]
["Place potatoes, half the scallions, 1 tablespoon salt and enough water to cover the potatoes.", "Boil until soft.", "Drain, reserving 1/2 cup cooking liquid.", "Mash the potatoes; stir in reserved cooking liquid, cream, butter, all but 2 teaspoons of the remaining scallions, 1/2 teaspoon salt, pepper and nutmeg. Transfer to warmed serving dish.", "Sprinkle with remaining scallions and serve hot."]
["yams", "potatoes", "potatoes", "scallions", "salt", "heavy cream", "butter", "pepper", "nutmeg"]