Make-Ahead Mashed Potatoes - cooking recipe

Ingredients

6 medium potatoes (about 2 lb.)
1/2 c. water
1/2 c. sour cream
3 oz. pkg. cream cheese
2 Tbsp. margarine
1 tsp. onion salt
1/4 tsp. pepper
1/4 to 1/2 c. milk

Preparation

Cook potatoes in water.
Mash with potato masher or with electric mixer.
Add sour cream, cream cheese, 1 tablespoon margarine, onion salt and pepper.
Gradually beat in enough milk to make smooth and fluffy.
Turn into a greased 1 1/2-quart casserole dish.
Cover with foil.
Chill up to 24 hours.