Amy's Hash Browns Casserole

My co-worker, amy, gave me this recipe today. She swears it is the best hashbrown casserole in the world"."

Saute onion in 1 / 2 cup butter.

Combine onion / butter mixture in a bowl with salt , pepper , cream of mushroom soup , sour cream , velveeta cheese , and hash browns.

Mix until combined.

Pour mixture into a greased 9x13 pan.

Cover with foil and bake at 350 degrees fahrenheit for 45 minutes to1 hour.

Remove foil and stir well.

Melt the 1 / 4 cup butter and combine with the cornflakes.

Toss well , until coated.

Spread on top of potato mixture.

Bake , uncovered , for 15 more minutes , or until corn flake mixture is toasty.

onion, butter, salt, pepper, cream of mushroom soup, sour cream, velveeta cheese, frozen hash browns, corn flakes