These cheesy scalloped potatoes are the ultimate comfort food side dish. Thinly sliced Yukon Gold potatoes are layered with a velvety garlic and thyme cream sauce and plenty of sharp cheddar cheese.
3 tablespoons unsalted butter
3 tablespoons all-purpose flour
1 and 1/2 cups whole milk
1 cup vegetable broth
2 garlic cloves, minced
2 teaspoons fresh thyme leaves
1 teaspoon sea salt
1/2 teaspoon freshly ground black pepper
3 pounds Yukon Gold potatoes, sliced 1/8 inch thick
1 small yellow onion, thinly sliced into half moons
1 and 1/2 cups shredded sharp cheddar cheese, divided
1. Preheat the oven to 400 Fahrenheit and grease a 9×13-inch baking dish.
2. In a medium skillet, melt butter over medium heat. Whisk in flour for 1 minute.
3. Slowly add milk and vegetable broth, whisking continuously. Add garlic, thyme, salt, and pepper. Cook 2 to 3 minutes until sauce coats the back of a spoon.
4. Layer half of the potatoes and half the onions in the baking dish. Top with half the sauce and 1 cup of cheese.
5. Repeat with remaining potatoes, onions, and sauce. Top with final 1/2 cup of cheese.
6. Cover with foil and bake for 30 minutes.
7. Uncover and bake for 35 to 40 minutes until potatoes are tender and top is browned.
8. Let stand for 20 minutes before serving.
Letting the dish rest for 20 minutes is critical for the sauce to set properly.
Use a mandoline for perfectly even 1/8 inch potato slices.
If using dried thyme, reduce the amount to 3/4 teaspoon.
Find it online: https://www.flavourrecipe.com/scalloped-potatoes/