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French Onion Potato Bake Recipe

French Onion Potato Bake Recipe


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4.7 from 32 reviews

  • Total Time: 1 hour 30 minutes
  • Yield: 8 1x

Description

Creamy French onion potato bake delivers comfort with classic French flavors, blending caramelized onions and rich cheese into a hearty side dish. Crispy golden edges and melted gruyère promise a luxurious culinary experience you’ll savor with each delightful bite.


Ingredients

Scale

Potatoes:

  • 3 lbs (1.36 kg) russet or Yukon Gold potatoes, peeled and thinly sliced

Cheese and Dairy:

  • 2 cups (480 ml) heavy cream
  • 1 cup (240 g) shredded Gruyere cheese (or Swiss cheese)
  • 2 tablespoons (30 g) unsalted butter

Seasonings and Additional Ingredients:

  • 1 large onion, thinly sliced
  • 1 packet (1 ounce/28 g) French onion soup mix
  • 1/2 cup (40 g) crispy fried onions (optional, for topping)
  • 1 teaspoon garlic powder
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper

Instructions

  1. Prepare the baking foundation by coating a 9×13-inch dish with a light butter layer, ensuring even coverage to prevent sticking.
  2. Create uniform potato medallions by carefully slicing them into thin, consistent rounds using a mandoline or precision knife for even cooking.
  3. Transform onions into a rich caramelized base by gently sautéing in butter over medium heat, developing deep golden-brown color and complex flavors.
  4. Craft a luxurious cream sauce by incorporating French onion soup mix, garlic powder, cream, salt, and pepper, whisking until ingredients meld seamlessly.
  5. Construct the initial potato layer in the prepared dish, arranging slices in overlapping patterns to create a compact foundation.
  6. Drench the first potato layer with half the aromatic cream mixture, ensuring thorough and even distribution of the sauce.
  7. Repeat the layering process with remaining potato slices, creating a symmetrical structure and generously coating with the remaining cream sauce.
  8. Encase the dish with aluminum foil, creating a protective seal to steam and tenderize the potatoes during initial baking.
  9. Roast in a preheated 375°F oven for 45 minutes, allowing the potatoes to absorb the creamy essence and become fork-tender.
  10. Unveil the dish, crown with a generous blanket of shredded Gruyère cheese, promoting a golden, bubbling crust.
  11. Return to the oven for an additional 20-25 minutes, monitoring the cheese’s transformation into a crispy, amber-hued topping.
  12. Optional: Sprinkle crispy fried onions during the final moments to introduce a delightful textural contrast.
  13. Allow the bake to rest and settle for 10 minutes, enabling the sauce to thicken and flavors to harmonize before serving.

Notes

  • Slice potatoes uniformly to ensure even cooking and consistent texture throughout the dish.
  • Use a mandoline for precise, thin potato slices that will absorb the creamy sauce perfectly.
  • Caramelize onions slowly to develop deep, rich flavor that enhances the entire potato bake.
  • Experiment with different cheese options like sharp cheddar or Emmental for unique flavor variations.
  • Reduce cream sauce by simmering longer for a thicker, more intense coating on the potatoes.
  • Add fresh herbs like thyme or rosemary for an aromatic boost to the classic French onion profile.
  • Make it gluten-free by using a certified gluten-free French onion soup mix and checking cheese ingredients.
  • Prepare ahead by assembling the bake and refrigerating, then bake just before serving for convenience.
  • Prep Time: 20 minutes
  • Cook Time: 1 hour 10 minutes
  • Category: Dinner, Snacks
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 8
  • Calories: 400
  • Sugar: 3 g
  • Sodium: 600 mg
  • Fat: 25 g
  • Saturated Fat: 15 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 36 g
  • Fiber: 3 g
  • Protein: 9 g
  • Cholesterol: 80 mg