Scalloped Potatoes
User Reviews
4.9
Scalloped Potatoes
Description
This recipe begins by making a roux with butter and flour, cooked briefly before whisking in whole milk and vegetable broth to create a flavorful sauce. Garlic, fresh thyme, salt, and freshly ground black pepper season the sauce, which is cooked until it thickly coats the back of a spoon. Thin slices of Yukon gold potatoes and yellow onions are layered with half the sauce and cheddar cheese, then topped with the remaining ingredients.
The assembled dish is covered during the initial 30 minutes of baking to allow the potatoes to cook thoroughly and absorb flavors without drying out. After removing the cover, it bakes further to brown the cheese and edges, developing a slight crust. Once baked, it rests before serving to firm up and meld the layers.
Ingredients
- 3 tablespoons butter plus more for the pan, unsalted
- ¼ cup all-purpose flour
- 2 cups milk whole
- 1 cup vegetable broth
- 4 garlic grated, cloves
- 1 tablespoon thyme chopped, fresh leaves
- 2 teaspoons salt sea salt
- ½ teaspoon black pepper freshly ground
- 3 pounds potato sliced ⅛-inch thick, Yukon gold variety
- ½ yellow onion thinly sliced, medium
- 1½ cups cheddar cheese grated
Instructions
- Preheat the oven to 400°F and grease a 9x13-inch baking dish.
- In a medium skillet, melt the butter over medium heat. Add the flour and whisk for 1 minute, then slowly add the milk followed by the vegetable broth, whisking continuously. Add the garlic, thyme, salt, and pepper and cook, whisking often, for 2 to 3 minutes, or until the sauce lightly coats the back of a spoon. Remove from the heat.
- Layer half of the potatoes at the bottom of the prepared baking dish. Top with half the onion, then half the sauce and 1 cup of the cheese. Repeat the layers with the remaining potatoes, onion, sauce, and ½ cup cheese.
- Cover and bake for 30 minutes, then uncover and bake for 35 to 40 minutes, or until the potatoes are tender and the cheese on top is browned. Let stand at room temperature for 20 minutes before serving.
User Reviews
Overall Rating
4.9
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