Dot hashbrowns with 1 stick butter. Mix mushroom soup, sour cream and onion together. Spread on top of potatoes. Top with cheddar cheese, ... 350°F for 90 minutes.
Cook potatoes in boiling salted water to ... mash potatoes. Add sour cream; beat at medium speed ... and pepper to potato mixture; stir well. Beat egg ... immediately. Yield: 6 servings.