Creamy au Gratin Potatoes

 

There's nothing like au gratin potatoes to take any meal over the top. The creamy, decadent, and oh-so satisfying recipe is sure to please everyone at your table.

Au Gratin Potatoes Ingredients

These are the ingredients you'll need to make this top-rated au gratin potatoes recipe:

• Potatoes: This recipe starts with thinly sliced Russet potatoes. You can substitute Yukon gold, if you like.
• Onion: Slice one onion into rings to layer with the potatoes.
• Seasonings: These creamy au gratin potatoes are simply seasoned with just salt and pepper.
• Butter and flour: The cheese sauce starts with a roux made with butter and all-purpose flour.
• Milk: Make sure you slowly whisk in the milk to create the creamiest consistency.
• Cheese: Because isn't everything better with shredded Cheddar?

How to Make Au Gratin Potatoes

You'll find the full, step-by-step recipe below — but here's a brief overview of what you can expect when you make these creamy potatoes au gratin:

1. Assemble the casserole: Layer half of the potatoes in the bottom of the prepared baking dish. Season. Layer onion slices over top, then top with remaining potatoes. Season again.
2. Make the sauce: Melt the butter in a saucepan. Gradually whisk in flour and salt and cook for about 1 minute. Gradually whisk in the milk. Cook, whisking constantly, until the mixture has thickened. Stir in the cheese.
3. Bake the casserole: Pour the sauce over the potatoes. Cover the dish with foil and bake in the preheated oven until the potatoes are tender and the sauce is bubbling.

Au Gratin vs. Scalloped Potatoes

Au gratin potatoes and scalloped potatoes are both creamy, rich, and starchy side dishes. But they're not quite the same thing: Au gratin potatoes are usually sliced slightly thinner than their scalloped counterparts. Also, scalloped potatoes traditionally don't include cheese (but more modern recipes can incorporate cheese into the mix).