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Scalloped Potatoes Au Gratin

Scalloped Potatoes au Gratin

The Crispy Chef
A creamy, cheesy comfort classic made with tender layers of Yukon Gold potatoes, velvety cream, and Gruyère cheese. Baked until bubbly with a golden crust, this dish balances elegance with cozy satisfaction.
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Prep Time 20 minutes
Cook Time 1 hour
Total Time 1 hour 20 minutes
Course Side Dish
Cuisine American, French
Servings 10 servings
Calories 360 kcal

Equipment

  • 9x13-inch baking dish
  • mandoline or sharp knife
  • Saucepan
  • Wooden spoon
  • Aluminum foil

Ingredients
  

  • 3 lb Yukon Gold potatoes, peeled and sliced 1/8-inch thick
  • 2 cups heavy cream
  • 1 cup whole milk
  • 3 tbsp unsalted butter, plus more for greasing
  • 2 cloves garlic, minced
  • 2 cups Gruyère cheese, shredded
  • 1 cup sharp cheddar cheese, shredded (optional)
  • 0.5 cup Parmesan cheese, grated
  • 1.5 tsp salt, divided
  • 0.75 tsp black pepper, freshly ground

Instructions
 

  • Preheat oven to 375°F (190°C). Generously butter a 9x13 inch baking dish.
  • Peel and slice Yukon Gold potatoes into uniform 1/8-inch rounds. Pat dry with paper towels.
  • In a saucepan, gently warm cream, milk, butter, garlic, 1 tsp salt, and 1/2 tsp pepper. Do not boil.
  • Layer one-third of potatoes in the dish, overlapping slightly. Season lightly with salt and pepper. Sprinkle with one-third of the cheeses. Repeat layering until all ingredients are used, finishing with cheese on top.
  • Pour warm cream mixture evenly over potatoes, ensuring it seeps between layers.
  • Cover with foil and bake 45 minutes. Remove foil and bake another 15–30 minutes until golden brown and bubbling.
  • Let rest 10–15 minutes before serving for cleaner slices and better texture.

Notes

Variations: Add fresh thyme, rosemary, or sage between layers for aromatic depth. Increase garlic or layer in thin garlic slices for extra flavor. Add ham, bacon, or caramelized onions for a heartier version. Try cheese blends — Gruyère + cheddar + Parmesan, or swap in smoked Gouda for richness. Make-ahead: Assemble up to a day before, cover, and refrigerate. Bake with an additional 15–20 minutes covered time when starting from cold. Storage: Keeps 3–4 days in the fridge. Reheat covered at 325°F, then uncover briefly to re-crisp the top.

Nutrition

Calories: 360kcalCarbohydrates: 28gProtein: 12gFat: 23gSaturated Fat: 14gCholesterol: 70mgSodium: 420mgFiber: 3gSugar: 3g
Keyword cheesy potato casserole, comfort food, holiday side dish, scalloped potatoes au gratin
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