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–+ servings

Scalloped Potatoes with Caramelised Onions and Gruyere

Scalloped Potatoes With Caramelised Onions And Gruyere Recipe
Ultra-creamy scalloped potatoes layered with sweet caramelised onions and nutty Gruyere cheese. A golden, bubbling comfort food side dish perfect for holidays or any cozy meal!
Amanda
Prep Time 25 minutes
Cook Time 1 hour
Total Time 1 hour 25 minutes
Serving Size 8 servings

Equipment

  • large skillet
  • Medium saucepan
  • Sharp knife or mandoline
  • cutting board
  • Mixing bowl
  • 9x13 inch baking dish
  • Whisk
  • Aluminum foil
  • Oven mitts
  • Wooden spoon

Ingredients

  • 2 tbsp unsalted butter
  • 2 large yellow onions thinly sliced
  • 2 cloves garlic minced
  • 2 lbs Yukon Gold potatoes peeled, sliced 1/8-inch thick
  • 1.5 cups heavy cream
  • 1 cup whole milk
  • 1.5 cups Gruyere cheese shredded
  • 0.5 cup Parmesan cheese grated
  • 1 tsp salt
  • 0.5 tsp black pepper
  • 0.5 tsp fresh thyme leaves optional

Instructions

  • Preheat oven to 375°F (190°C) and grease baking dish.
  • Melt butter in skillet over medium heat. Add onions and cook 20–25 minutes until golden and soft. Add garlic and cook 1 minute.
  • Warm cream and milk in a saucepan with salt, pepper, and thyme. Do not boil.
  • Layer half the potatoes in baking dish. Add half the onions, Gruyere, and Parmesan. Repeat layers.
  • Pour warm cream mixture over the top.
  • Cover with foil and bake 40 minutes. Remove foil and bake another 20 minutes until golden and bubbly.
  • Let sit 10 minutes before serving.

Notes

Slice potatoes evenly for best texture. Swap in white cheddar for Gruyere if desired. Reheats well in oven at 350°F for 15 minutes. Leftovers taste even better the next day!

Nutrition

Calories: 340kcal | Protein: 9g | Saturated Fat: 13g | Cholesterol: 65mg | Sodium: 540mg