Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C). Lightly coat a 9x13 inch baking dish with cooking spray.
- Peel the potatoes and slice them thinly and uniformly, about 1/8 inch thick, using a sharp knife or mandoline for best results.
- Arrange a single layer of sliced potatoes evenly in the bottom of the prepared baking dish.
- Sprinkle approximately one-third of the all-purpose flour over the potato layer, then season generously with salt and pepper to taste.
- Place a layer of Cheddar cheese slices over the seasoned potatoes, using about one-third of the cheese.
- Repeat the layering process: add another layer of potatoes, sprinkle with flour, season with salt and pepper, and top with cheese slices.
- Add the final layer of potatoes, sprinkle with the remaining flour, season, and top with the remaining Cheddar cheese slices.
- Carefully pour the skim milk evenly over the layered potatoes and cheese, ensuring it distributes throughout the dish.
- Cover the baking dish tightly with aluminum foil and bake for 60 minutes. Then, remove the foil and bake for an additional 15-20 minutes, or until the potatoes are fork-tender and the cheese is bubbly and golden brown.
- Remove from the oven and let the scalloped potatoes rest for 10-15 minutes before serving to allow the sauce to set and prevent it from being too runny.
Notes
Uniformly slicing potatoes is crucial for even cooking; a mandoline can achieve this perfectly. While Cheddar is traditional, consider adding a touch of Gruyere or Parmesan for a more complex, nutty flavor. The recipe relies on flour and milk to form the sauce during baking. For a smoother result, you could pre-whisk the flour into a small amount of cold milk before gradually stirring into warm milk, then adding to the dish. Don't forget a generous seasoning of salt and freshly ground black pepper; a hint of freshly grated nutmeg can elevate the creamy potatoes. Cover the dish for most of the baking to ensure the potatoes cook through, then uncover to achieve a golden, bubbly cheese crust.
