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5-Step French Onion Scalloped Potatoes – Best Comfort Side


  • Author: Alessia Romano
  • Total Time: 90 minutes
  • Yield: 6 servings 1x
  • Diet: Vegetarian

Description

A comforting dish featuring layers of tender potatoes drenched in creamy sauce and sweet caramelized onions.


Ingredients

Scale
  • 4 large Yukon Gold or Russet potatoes, thinly sliced
  • 2 large yellow onions, sliced
  • 2 cups heavy cream
  • 1 cup beef or vegetable stock
  • 1 cup Gruyère or Swiss cheese, shredded
  • 1/2 cup cheddar cheese, shredded
  • 1 tablespoon fresh thyme or parsley
  • Salt and pepper to taste
  • 2 tablespoons butter (for caramelizing onions)

Instructions

  1. Prep the ingredients: Slice your potatoes uniformly to ensure even cooking.
  2. Caramelize the onions: In a large skillet, melt butter over medium heat and add sliced onions with a pinch of salt. Cook until golden and caramelized, about 25 minutes.
  3. Make the creamy sauce: In a saucepan, combine heavy cream, stock, salt, pepper, and herbs. Heat gently without boiling and add half the cheese, stirring until melted.
  4. Layer it up: In a greased baking dish, layer potatoes and caramelized onions alternately. Pour the creamy sauce over the top, covering the layers well.
  5. Bake: Cover with foil and bake at 350°F (175°C) for about 45 minutes. Uncover, sprinkle remaining cheese, and bake an additional 20-30 minutes until bubbly and golden.
  6. Rest and serve: Let it sit for 10-15 minutes before serving to allow the layers to set.

Notes

For a lighter option, use half-and-half instead of heavy cream. Substitute with sautéed mushrooms for an earthy twist.

  • Prep Time: 20 minutes
  • Cook Time: 70 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 1 serving
  • Calories: 400
  • Sugar: 5g
  • Sodium: 500mg
  • Fat: 24g
  • Saturated Fat: 14g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 45g
  • Fiber: 4g
  • Protein: 10g
  • Cholesterol: 80mg

Keywords: scalloped potatoes, creamy potatoes, french onion, comfort food, side dish