This Mom's Au Gratin Potatoes recipe is a classic comfort food dish that is perfect for any occasion. The potatoes are sliced thin and layered with a creamy, cheesy sauce, then baked to golden perfection. It's the ultimate side dish that pairs well with any main course. With a simple preparation process and easily accessible ingredients, this recipe is sure to become a family favorite. Serve it at your next dinner party or enjoy it as a comforting weeknight meal.
Ingredients
- 2 pounds russet potatoes, peeled and thinly sliced
- 1 small onion, finely chopped
- 2 cups shredded cheddar cheese
- 2 cups whole milk
- 4 tablespoons unsalted butter
- 4 tablespoons all-purpose flour
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/4 teaspoon garlic powder
- 1/4 teaspoon paprika
Directions
- Preheat the oven to 375°F (190°C) and grease a 9x13-inch baking dish.
- In a large skillet, melt the butter over medium heat. Add the chopped onion and cook until softened and translucent.
- Sprinkle the flour over the onion and butter mixture, then stir to combine. Cook for 1-2 minutes, until the flour is lightly golden brown.
- Slowly pour in the milk, whisking constantly to avoid lumps. Continue whisking until the mixture thickens and comes to a simmer.
- Reduce the heat to low and add 1 1/2 cups of the shredded cheddar cheese, stirring until melted and smooth.
- Season the sauce with salt, black pepper, garlic powder, and paprika. Stir until well combined.
- Layer half of the sliced potatoes evenly in the greased baking dish. Pour half of the cheese sauce over the potatoes, spreading it out with a spoon or spatula.
- Repeat the layer with the remaining sliced potatoes and cheese sauce.
- Cover the baking dish with foil and bake for 40 minutes.
- Remove the foil and sprinkle the remaining 1/2 cup of shredded cheddar cheese over the top.
- Return the dish to the oven, uncovered, and bake for an additional 15-20 minutes, or until the cheese is bubbly and golden.
- Remove from the oven and let it cool for a few minutes before serving.
- Serve the Mom's Au Gratin Potatoes as a side dish with your favorite main course.
Interesting Facts
Au gratin is a French culinary term that means food is topped with breadcrumbs and cheese and then browned.
Potatoes au gratin originated in French cuisine but became popular in American households as a classic comfort food dish.
The creamy and cheesy sauce in this recipe can be customized with different types of cheese for additional flavor variations.
Au gratin potatoes can be made ahead of time and reheated for a quick and convenient side dish.