Make-Ahead Mashed Potatoes

Directions

1. 1
   Cook potatoes in boiling, salted water until tender, drain thoroughly.
2. 2
   Combine potatoes, sour cream, butter, salt and pepper in large bowl.
3. 3
   Beat at low speed with mixer until blended.
4. 4
   Beat at high speed until light and fluffy.
5. 5
   Pile lightly into a buttered 2 quart casserole.
6. 6
   Cover and refrigerate overnight if you wish.