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French Onion Potato Bake

A creamy and cheesy potato bake featuring sweet caramelized onions that brings warmth and comfort to your home.
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Prep Time 30 minutes
Cook Time 1 hour 5 minutes
Total Time 1 hour 35 minutes
Course Casserole, Main Course
Cuisine French
Servings 6 servings
Calories 450 kcal

Ingredients
  

For the Caramelized Onions

  • 2 large yellow onions, thinly sliced The underestimated superstar of the dish!
  • 2 tablespoons butter Foundation of flavor in the caramelization process.
  • 1 tablespoon olive oil Helps sauté without sticking.
  • 1 teaspoon salt Enhances flavors.
  • ½ teaspoon black pepper Adds a little punch.
  • 1 teaspoon sugar (optional) Helps with quicker caramelization.
  • ½ teaspoon garlic powder Adds aromatic notes.
  • ½ teaspoon dried thyme (or 1 teaspoon fresh thyme) Earthy element that ties the dish together.
  • ½ cup beef broth (or vegetable broth for a vegetarian version) Provides a savory liquid base.

For the Potato Bake

  • 4 large Yukon Gold potatoes, sliced ¼-inch thick Creamy potatoes that bake beautifully.
  • 1 tablespoon butter (for greasing) To prevent sticking.
  • 1 cup shredded Gruyère cheese Rich and nutty.
  • ½ cup Parmesan cheese, grated Adds umami kick.
  • 1 cup heavy cream or whole milk Provides creaminess.
  • ½ teaspoon salt To season layers.
  • ¼ teaspoon black pepper For balance.
  • 1 teaspoon fresh thyme leaves Fresh touch to elevate the dish.
  • 1 cup crispy fried onions (optional) For extra crunch.
  • extra to taste Parmesan cheese For additional cheesy goodness.

Instructions
 

Caramelize the Onions

  • Melt 2 tablespoons of butter and 1 tablespoon of olive oil over medium heat. Add sliced onions, salt, pepper, and optional sugar. Sauté for about 20-30 minutes until caramelized.

Prepare the Potatoes

  • Thinly slice the Yukon Gold potatoes. Season with olive oil, salt, and pepper.

Assemble the Bake

  • Grease a baking dish with 1 tablespoon of butter. Layer with potatoes, half of the onions, half of the cheeses, and sprinkle garlic powder and thyme. Repeat the layers, then pour broth and cream over the top.

Bake the Dish

  • Cover with aluminum foil and bake at 375°F for 40-45 minutes. Remove foil, add crispy fried onions if desired, and bake for another 15-20 minutes.

Serve & Enjoy

  • Let it cool for 10-15 minutes, garnish with fresh thyme, and serve.

Notes

Use Yukon Gold potatoes for creaminess; keep an eye on onions to avoid burning. Cheese variations are encouraged!

Nutrition

Serving: 1gCalories: 450kcalCarbohydrates: 35gProtein: 10gFat: 30gSaturated Fat: 18gSodium: 800mgFiber: 3gSugar: 3g
Keyword Cheesy Casserole, Comfort Food, Easy Dinner, French Onion, Potato Bake
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