Funeral Potatoes - Au Gratin Hash Brown Casserole
These Au Gratin Hash Brown Potatoes are the definition of comfort food! Like a loaded baked potato in casserole form! Perfect for parties and holidays.
Servings: 12
Ingredients
- 1 (30 oz) package frozen shredded hash brown potatoes, thawed
- 4 Tbsp butter, diced into 1 Tbsp pieces
- 1/2 cup finely chopped yellow onion
- 3 Tbsp all-purpose flour
- 3 cups milk (whole or 2%)
- 2 cups shredded sharp cheddar cheese
- 1/2 cup finely shredded parmesan cheese
- 1 cup sour cream
- Salt and black pepper
- 4 cups cornflakes, crushed (nearly 2 cups once crushed)
- 3 Tbsp butter, melted
- 1 1/2 Tbsp chopped fresh parsley
Instructions
- Preheat oven to 350 degrees.
- Melt 4 Tbsp butter in a large saucepan over medium heat. Add onion and saute until softened, about 5 - 6 minutes.
- Add in flour and cook stirring constantly, 1 minute. While whisking pour in milk then cook stirring constantly until mixture comes to a light simmer.
- Remove from heat. Add in cheddar cheese and parmesan cheese and stir until melted.
- Stir in sour cream. Season mixture with salt and pepper to taste (you want it on the salty side as it will be seasoning the potatoes).
- Place hash browns in a large mixing bowl then pour in milk mixture and toss to evenly coat. Transfer to a 13 by 9-inch baking dish (no need to grease dish) and spread into and even layer.
- Place cornflakes in a bowl. Pour in 3 Tbsp melted butter and toss to evenly coat.
- Sprinkle cornflake mixture evenly over casserole.
- Bake in preheated oven until hot throughout, about 40 - 50 minutes. Garnish with parsley and serve warm.