1.Bring A Large Pot Of Lightly Salted Water To A Boil. Add Noodles And Cook For 8 To 10 Minutes Or Until Al Dente; Drain. 2.While Noodles Are Cooking, Combine The Sour Cream, 1/4 Cup Cheese, Chives, Salt And Pepper In A Medium Bowl. Mix Together. 3.Stir Butter Into Drained Noodles, Then Stir In Sour Cream Mixture. Place On A Warm Platter And Sprinkle With Remaining 1/4 Cup Cheese.