Recipe: Refrigerator Mashed Potatoes (make ahead, using 5 lbs. of potatoes)

REFRIGERATOR MASHED POTATOES (make ahead)

5 pounds potatoes, peeled
2 packages (3 ounces each) cream cheese, room temperature
1 cup sour cream
2 teaspoons onion powder
1 teaspoon salt (or to taste)
1/4 teaspoon ground black pepper (or to taste)
2 tablespoons butter or margarine
Butter for topping

Boil potatoes until tender; drain and mash smooth. Add remaining ingredients and beat until fluffy. Store covered in the refrigerator until ready to use. Keeps in refrigerator for 4-5 days.

TO PREPARE FOR SERVING:
Preheat oven to 350 degrees F. Grease a casserole to hold desired amount. (The whole batch will need a 2 quart casserole.)

Put potatoes in casserole and dot with butter.

Bake until hot - about 30 minutes.