Tender sliced potatoes layered with creamy roasted garlic-infused cheese sauce and baked until golden and bubbling — the perfect comfort food side dish.
2½ to 3 lbs Yukon Gold or Russet potatoes, peeled and thinly sliced
1 head garlic
1 tbsp olive oil
2 tbsp butter
2 cups heavy cream or half-and-half
1½ cups shredded Gruyère cheese
½ cup shredded sharp cheddar (optional)
½ cup grated Parmesan
1 tsp salt
½ tsp black pepper
Pinch of nutmeg (optional)
1 tsp chopped fresh thyme (optional)
Preheat oven to 400°F. Slice top off garlic head, drizzle with olive oil, wrap in foil, and roast for 35–40 minutes. Cool and squeeze out cloves.
Lower oven to 375°F. Grease a 9×13-inch baking dish.
In a saucepan, melt butter. Add mashed roasted garlic. Stir in cream, salt, pepper, and nutmeg. Warm gently, then stir in Gruyère and cheddar.
Layer half of the sliced potatoes in dish. Pour over half the cream mixture. Repeat with remaining potatoes and sauce. Top with Parmesan and thyme.
Cover with foil and bake for 45 minutes. Uncover and bake 20–25 more minutes until golden and bubbly.
Let rest 10 minutes before serving.
Use a mandoline for even slicing.
Add caramelized onions or cooked bacon for variation.
Store leftovers in fridge for 3–4 days or freeze for later.