The Best Kind of Potato to Use for Potatoes au Gratin
Just like when making scalloped potatoes, the best potatoes for gratin are red-skinned or Yukon gold potatoes. These two waxy potatoes can hold their shape well and because they’re thin-skinned, they do not require peeling (extra bonus!).
While russet potatoes or baking potatoes taste good, they’re more starchy. They do not hold their shape as well and the dish can become mushy, they’re more suited to mashed potatoes.
Scalloped potatoes vs Potatoes au Gratin
So what is the difference between the scalloped potatoes and au gratin potatoes? They’re both very similar containing potatoes (and often onions) baked in a creamy sauce. Au Gratin is defined as covered with breadcrumbs or cheese, scalloped refers to “bake with milk or a sauce”.
In the case of this recipe, the difference is the cheese. That being said, the term scalloped potatoes is still often still used if there is cheese within the dish!
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