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French Lyonnaise Potatoes


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5 from 1 review

  • Author: Filippo Trapella
  • Total Time: 75 minutes
  • Yield: Serves 6
  • Diet: Gluten-Free, Omnivore

Description

Crispy-edged potatoes and sweet caramelized onions make a perfect side. Simple to make, but impressive enough for any meal.


Ingredients

Units Scale
  • 2 lbs (907 g) red potatoes
  • 3 lbs (1361 g) big yellow onions
  • 1 tsp yellow mustard seeds
  • 1 tbsp fresh parsley
  • 8 tbsp unsalted butter
  • 1 dash black pepper
  • table salt

Instructions

  1. Brush potatoes under running water, cut into rings, and rinse to remove starch.
  2. Submerge potatoes in medium-hot water for at least 1 hour.

For the Caramelized Onions

  1. Peel and slice onions.
  2. In a skillet, melt 2 tbsp butter, add 2 pinches of salt and optional yellow mustard seeds.
  3. Cook onions over medium-low heat until golden brown and caramelized, stirring occasionally.

For Roasting Potatoes

  1. Preheat oven to 450°F (230°C).
  2. Melt 6 tbsp butter in a pot over medium heat.
  3. Rinse and dry potatoes.
  4. Season potatoes with melted butter and place on a parchment-lined baking tray.
  5. Season with salt and bake until golden brown, flipping and salting halfway.
  6. Use broiler to brown and crisp, watching parchment paper carefully to prevent fire.

For Finishing and Serving

  1. Add roasted potatoes to the pan with caramelized onions.
  2. Bake for 10 more minutes at 355°F (180°C).
  3. Garnish with minced parsley and black pepper.
  4. Serve immediately.

Notes

  • For crispier potatoes, soak them in cold water for at least 30 minutes before cooking to remove excess starch.
  • If you don’t have yellow mustard seeds, omit them or substitute with a pinch of Dijon mustard for a slightly different flavor profile.
  • Store leftover potatoes in an airtight container in the refrigerator for up to 3 days. Reheat gently in a pan or oven to restore crispness.
  • Prep Time: 30 minutes
  • Cook Time: 45 minutes
  • Category: Side Dish
  • Method: Roasting
  • Cuisine: French

Nutrition

  • Serving Size: 1 cup
  • Calories: 300
  • Sugar: 5
  • Sodium: 300
  • Fat: 20
  • Saturated Fat: 12
  • Unsaturated Fat: 6
  • Carbohydrates: 30
  • Fiber: 3
  • Protein: 4
  • Cholesterol: 40