Potatoes au gratin is a simple, cheesy side dish that complements any meal beautifully, delivering rich, creamy comfort in every bite.
Author:Zayn
Prep Time:20 mins
Cook Time:1 hr 40 mins
Total Time:2 hrs
Yield:8
Ingredients
Scale
2 pounds russet potatoes peeled and sliced thin (1/8”)
1 tsp sea salt
½ tsp ground pepper
½ tsp dried thyme
¼ cup unsalted butter
2 cloves garlic minced
2 cups whole milk
2½ cups cheddar cheese shredded (about 150 grams)
2½ cups gruyere cheese shredded (about 150 grams)
Instructions
Preheat your oven to 350°F (175°C).
Slice the potatoes into thin ⅛-inch rounds and set them aside.
In a small saucepan over low heat, melt the butter. Add the garlic and sauté gently for about 1 minute until fragrant. Remove from the heat, pour in the milk, stir until combined, and set aside.
In a small bowl, mix together the sea salt, ground pepper, and dried thyme.
Lightly grease a 9×13-inch baking dish. Assemble the dish in three layers:
Layers 1 & 2: Arrange one-third of the sliced potatoes evenly in the pan. Sprinkle with one-third of the seasoning mixture, then add one-third of each cheese. Repeat the same process for the second layer.
Layer 3: Add the remaining potatoes in an even layer. Pour the milk and butter mixture over the top, sprinkle with the remaining seasoning, and reserve the last portion of cheese for later.
Cover the dish tightly with foil and bake for 90 minutes, or until the potatoes are fork-tender.
Cover the dish tightly with foil and bake for 90 minutes, or until the potatoes are fork-tender.
Let the dish rest for a few minutes before serving to allow it to set slightly.