Mashed Potato Bake - cooking recipe

Ingredients

9 large potatoes
2 (3 oz.) pkg. cream cheese
1 c. sour cream
1 tsp. salt
1 tsp. onion salt
1 tsp. pepper
4 Tbsp. butter

Preparation

Cook, drain and mash potatoes.
Add remaining ingredients and beat until fluffy.
Refrigerate overnight.
Bake at 350\u00b0 for 45 minutes.