Ingredients
Equipment
Method
Preparation
- Preheat oven to 375°F (190°C) and lightly grease a 9x13 inch baking dish.
- Slice potatoes thinly, about 1/8 inch thick, using a mandoline or sharp knife.
Cooking
- Combine heavy cream, minced garlic, thyme, salt, and pepper in a saucepan; heat gently but do not boil.
- Layer half of the sliced potatoes in the prepared baking dish, pour half the cream mixture over them, and sprinkle with half of both cheeses.
- Repeat with the remaining potatoes, cream mixture, and cheeses.
- Bake for 45-50 minutes, or until potatoes are tender and the top is golden brown and bubbly.
Serving
- Let the au gratin potatoes rest for 10 minutes before serving to allow them to set.
Notes
For best results, use a mandoline for uniformly sliced potatoes, ensuring even cooking. Do not let the cream boil to prevent it from curdling. A combination of Gruyere and Parmesan cheese offers the best flavor and melt. You can also add a pinch of nutmeg to the cream mixture for an extra layer of flavor. Ensure the potatoes are fully submerged in the cream mixture for optimal creaminess.
