- 5 pounds potatoes, peeled and cubed
- 1 cup sour cream
- 2 (3 ounce) packages cream cheese, softened
- 3 tablespoons butter or margarine, divided
- 1 teaspoon salt
- 1 teaspoon onion salt
- 1/4 teaspoon pepper
- Place potatoes in a Dutch oven; cover with water. Cover and bring to a boil. Cook for 20-25 minutes or until very tender; drain well.
- In a large mixing bowl, mash potatoes. Add sour cream, cream cheese, 2 tablespoons butter, salt, onion salt and pepper; beat until fluffy. Transfer to a greased 2-qt. baking dish. Dot with the remaining butter. Bake, uncovered, at 350 degrees F for 20-25 minutes or until heated through.