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French Onion Potatoes Recipe

French Onion Potatoes Recipe


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4.7 from 25 reviews

  • Total Time: 65-75 minutes
  • Yield: 4 1x

Description

Comfort meets elegance in this French onion potatoes masterpiece, blending rustic charm with gourmet flair. Caramelized onions and melted cheese create a rich, soul-warming side dish you’ll crave again and again.


Ingredients

Scale

Potatoes:

  • 4 large potatoes
  • 2 tbsp olive oil
  • 1 tsp salt
  • 0.5 tsp black pepper

Onions:

  • 3 large yellow onions
  • 2 tbsp butter
  • 1 tbsp fresh thyme
  • 1 tsp sugar

Cheese and Finishing:

  • 1.5 cups gruyère cheese
  • 0.5 cups beef broth
  • 2 cloves garlic
  • 2 tbsp fresh parsley

Instructions

  1. Preheat the oven to 425°F and prepare a large baking dish by lightly greasing it with olive oil.
  2. Thoroughly wash potatoes and slice them into thin, uniform rounds approximately 1/4 inch thick, ensuring even cooking.
  3. Arrange potato slices in overlapping layers within the prepared baking dish, seasoning each layer with salt and black pepper.
  4. Melt butter in a large skillet over medium-low heat and slowly caramelize sliced yellow onions, stirring occasionally until deeply golden and soft, approximately 25-30 minutes.
  5. Incorporate fresh thyme and sugar into the caramelized onions, cooking for an additional 2-3 minutes to enhance their rich, complex flavor.
  6. Spread the caramelized onion mixture evenly across the layered potato slices in the baking dish.
  7. Mince garlic and sprinkle over the onion-potato layers, then pour beef broth around the edges to prevent drying.
  8. Cover the dish with aluminum foil and bake for 35 minutes, allowing potatoes to become tender.
  9. Remove foil, generously top with grated gruyère cheese, and return to oven for 15-20 minutes until cheese is melted and edges are crispy and golden.
  10. Remove from oven and let rest for 5-10 minutes to allow flavors to meld and settle.
  11. Garnish with freshly chopped parsley before serving, adding a bright, fresh element to the rich dish.

Notes

  • Slice potatoes uniformly for consistent, even cooking throughout the dish.
  • Caramelize onions slowly to develop deep, rich flavor without burning, which requires patience and low, steady heat.
  • Use high-quality gruyère cheese for authentic French flavor and optimal melting texture.
  • Consider dairy-free alternatives like nutritional yeast or vegan cheese for lactose-intolerant or plant-based diets.
  • Prep Time: 15 minutes
  • Cook Time: 50-60 minutes
  • Category: Lunch, Dinner, Appetizer, Snacks
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 4
  • Calories: 350
  • Sugar: 1 g
  • Sodium: 500 mg
  • Fat: 15 g
  • Saturated Fat: 7 g
  • Unsaturated Fat: 8 g
  • Trans Fat: 0 g
  • Carbohydrates: 45 g
  • Fiber: 5 g
  • Protein: 10 g
  • Cholesterol: 30 mg