Potatoes Au Gratin

Homemade Potatoes Au Gratin are classic comfort food! The tender potato slices are covered in a creamy cheese sauce and baked until golden.

While growing up we often had potatoes au gratin as a side dish with a ham dinner or as the main dish with diced ham in the potatoes. No matter how you choose to serve them, your family will love these cheesy potatoes!

Potatoes Au Gratin Ingredients

The ingredients needed to make potatoes au gratin are simple. It’s just a matter of combining them in a specific way to make this casserole! Scroll down for the complete recipe with ingredient measurements.

• Potatoes: This recipe needs starchy potatoes such as russet or Yukon Gold. These potatoes help thicken the sauce and get tender when baked. We chose russet potatoes.
• Butter: The salted butter is melted and combined with the flour to make a roux.
• Flour: All-purpose flour is used to make the roux and it helps thicken the sauce.
• Onion Powder: We used onion powder in this recipe but you can use minced, diced or sliced onions if you prefer.
• Salt and Pepper: The salt and pepper add flavor.
• Milk: Whole milk is the main ingredient of the white cream sauce.
• Cheese: We chose shape cheddar cheese because of the flavor it adds to the dish. You can use other cheeses if you want other flavor options.
• Butter: Small cubes of butter are dotted around the top of the casserole to added moisture and flavor.
• Parsley: A sprinkle of parsley on top is the perfect garnish for these potatoes.

How To Make Potatoes Au Gratin

There are four steps to making these cheesy potatoes. Slice the potatoes, make the sauce, layer the sauce and potatoes in a casserole dish, and bake until the potatoes are tender. Scroll down for the printable recipe card and complete instructions.

• Slice Potatoes: After peeling the potatatoes, use a mandoline slicer to make thin slices. You can also use a sharp knife to slice the potatoes.
• Cheese Sauce: Prepare the white cream sauce on the stovetop. Make a roux using butter and flour. Whisk in the milk until the flour clumps have dissovled. Add the seasonings and cook the sauce until thickened. Remove the sauce from the heat and stir in the shredded cheddar cheese.
• Potatoes: In a greased casserole dish, layer the sliced potaotes and cheese sauce. Dot the top with cubed butter.
• Bake: Bake the casserole until the potatoes are tender and the top of golden brown.

Au Gratin Potatoes Frequently Asked Questions

Want more potato recipes? Try these next:

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This Garlic Mashed Potatoes recipe is made from scratch. These smooth, creamy, flavorful potatoes are the perfect side dish.

These Twice Baked Potatoes are to-die-for with fluffy mashed potatoes inside and crispy skin outside topped with cheddar cheese and bacon!

Homemade Scalloped Potatoes have layers of potato slices covered in a creamy white sauce and baked until golden.