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French Onion Potato Bake

French Onion Potato Bake

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If you’re craving a warm, hearty dish that fills your home with delightful aromas, this French Onion Potato Bake is the perfect solution. With layers of creamy Yukon Gold potatoes, sweet caramelized onions, and a blend of melty cheeses, this comforting casserole is guaranteed to bring smiles around the dinner table. Perfect for busy weeknights or cozy family gatherings, this dish is not only easy to prepare but also offers a fantastic way to use those staple ingredients you have on hand. Once you try it, you’ll find yourself making this flavor-packed bake time and again!

Ingredients

Scale
  • 2 large yellow onions
  • 2 tablespoons butter
  • 1 tablespoon olive oil
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 1 teaspoon sugar (optional)
  • ½ teaspoon garlic powder
  • ½ teaspoon dried thyme (or 1 teaspoon fresh thyme)
  • ½ cup beef broth (or vegetable broth for a vegetarian version)
  • 4 large Yukon Gold potatoes, sliced ¼-inch thick
  • 1 tablespoon butter (for greasing)
  • 1 cup shredded Gruyère cheese (or Swiss, cheddar, or mozzarella)
  • ½ cup Parmesan cheese, grated
  • 1 cup heavy cream or whole milk
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • 1 teaspoon fresh thyme leaves
  • Fresh thyme sprigs
  • Extra Parmesan cheese
  • Crispy fried onions (optional, for extra crunch)

Instructions

  1. In a skillet, melt butter and olive oil over medium heat. Add sliced onions and salt; cook until caramelized (15-20 minutes).
  2. Slice Yukon Gold potatoes into ¼-inch thick rounds and grease a baking dish with butter.
  3. Place half of the potato slices in the dish, followed by caramelized onions and half of the Gruyère cheese. Repeat layers.
  4. Whisk together cream (or milk), salt, pepper, and thyme leaves; pour over layered ingredients.
  5. Preheat oven to 375°F (190°C). Cover with foil and bake for 40 minutes. Remove foil, add extra Parmesan if desired, and bake uncovered for another 15-20 minutes until golden brown.

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