Go Back
serving cheesy scalloped potatoes side dish

Cheesy Scalloped Potatoes

These creamy, cheesy scalloped potatoes feature thinly sliced Yukon Gold and Russet potatoes layered in a rich cheddar-Gruyère sauce and baked until golden and bubbling. Perfect for holidays or weeknight comfort meals.
Print Recipe Pin Recipe
Prep Time 20 minutes
Cook Time 1 hour 15 minutes
Resting Time 15 minutes
Total Time 1 hour 45 minutes
Servings: 6 servings
Course: Side Dish
Cuisine: American
Calories: 420
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 3 lbs Yukon Gold Potatoes peeled and sliced 1/8 inch thick
  • 2 tbsp butter
  • 2 tbsp all-purpose flour
  • 1.5 cups whole milk
  • 1 cup heavy cream
  • 1.5 cups sharp cheddar cheese freshly shredded
  • 0.5 cup Gruyère cheese shredded
  • 0.25 cup Parmesan cheese grated, for topping
  • 1 clove garlic minced
  • 1 tsp Dijon mustard
  • 1 tsp salt to taste
  • 0.5 tsp black pepper freshly ground
  • pinch nutmeg optional
Optional Garnish
  • chopped parsley or chives for serving

Equipment

  • Mandoline Slicer
  • 9x13-inch Casserole Dish
  • Saucepan
  • Whisk

Method
 

  1. Preheat oven to 350°F (175°C). Grease a 9x13-inch casserole dish with butter or nonstick spray.
  2. Peel and slice potatoes 1/8 inch thick using a mandoline slicer or knife. Soak in cold water for 5 minutes, then pat dry.
  3. In a medium saucepan, melt butter over medium heat. Whisk in flour to form a roux, cooking for 1 minute.
  4. Gradually whisk in milk and cream, stirring constantly until thickened (about 4–5 minutes).
  5. Remove from heat and stir in cheddar, Gruyère, Dijon mustard, nutmeg, salt, and pepper until smooth and melted.
  6. Layer half of the sliced potatoes in the prepared dish. Pour half the cheese sauce over, then repeat with remaining potatoes and sauce. Sprinkle Parmesan on top.
  7. Cover with foil and bake for 45 minutes. Remove foil and bake another 25–30 minutes, until golden and tender.
  8. Let rest for 10–15 minutes before serving. Garnish with chopped parsley or chives if desired.

Notes

Use freshly shredded cheese for the smoothest sauce — pre-shredded cheese can cause graininess. For extra flavor, sprinkle fresh thyme or smoked paprika between layers.