2poundsrusset or Yukon gold potatoesThinly sliced, about 1/8 inch thick.
Onion
1mediumonionThinly sliced.
Cream Sauce
2cupsheavy creamCreates a rich, velvety sauce.
2-3clovesgarlicMinced.
1-2cupsshredded cheeseCheddar or Gruyère recommended.
4tablespoonsunsalted butterFor greasing the dish and topping.
Seasoning
to tastesalt
to tasteblack pepper
Fresh Herbs
1tablespoonfresh thyme or rosemaryFinely chopped, optional.
Instructions
Preheat your oven to 375°F (190°C) and grease a 9x13-inch baking dish with butter.
Wash, peel, and thinly slice the potatoes.
Slice the onion into thin rings.
In a large mixing bowl, combine heavy cream, minced garlic, salt, and pepper. Whisk until well combined.
Layer the ingredients in the baking dish: potatoes, onions, cream mixture, and cheese. Repeat until all ingredients are used, finishing with cheese on top.
Dot the top with small pieces of butter and sprinkle with fresh herbs if using.
Cover with aluminum foil and bake for 45 minutes.
Remove foil and bake for an additional 15-20 minutes until the top is golden and bubbly.
Let rest for 10 minutes before serving.
Notes
Store leftovers in an airtight container for up to 3 days. Reheat in the oven for best results.