Potatoes Au Gratin This post may contain au gratin potatoes and ham links. Homemade Potatoes Au Gratin are classic comfort food!
The tender potato slices are covered in a creamy cheese sauce and baked until golden. Potatoes: This recipe needs starchy potatoes such as russet or Yukon Gold. These potatoes help thicken the sauce and get tender when baked. 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.