Lyonnaise Potatoes French Style

Section: Perfect Side Dishes to Complete Any Meal

Thinly sliced Yukon Golds meet golden onions and fresh thyme in this iconic French dish from Lyon. Parboiled and pan-fried, each potato slice is crisp outside, tender inside. Butter and olive oil create a rich crust, while a splash of broth adds depth. Finished with fresh parsley, it’s a warm, elegant side that pairs beautifully with meats or fish. A touch of technique transforms basic ingredients into comforting sophistication. Ideal for casual dinners or special meals.

A woman wearing a chef's hat and apron.
Recipe Author Maria
Updated as of Wed, 04 Jun 2025 00:04:07 GMT
A white bowl filled with cooked potatoes. Bookmark
A white bowl filled with cooked potatoes. | foodbymary.com

Lyonnaise potatoes are where elegance meets rustic comfort! This classic French dish, originating from the city of Lyon, transforms ordinary potatoes into something truly magnificent.

Yukon Golds are sliced thin and cooked to perfection with butter, caramelized onions, and fresh thyme.

Dating back to 19th-century bistros, this recipe represents the essence of French home cooking. Simple ingredients are elevated through technique and patience.

I just love the tender potato slices with crisp edges and sweet, caramelized onions. This dish is truly divine!

I love serving Lyonnaise potatoes with roasted chicken or beef tenderloin. Trust me, they make any weeknight dinner feel like a restaurant-worthy experience!

Ingredients for Lyonnaise Potatoes

  • Yukon Gold or Russet Potatoes: Select starchy, medium potatoes. They become crispy on the outside but maintain a creamy interior when pan-fried. I prefer Yukon Golds, which are more buttery. But Russets provide maximum crispiness.
  • Yellow Onions: Sweet onions are a signature element of Lyonnaise potatoes. They become golden brown and provide a rich, savory foundation for the dish. Sometimes, I use white onions if I don’t have yellow on hand, though they aren’t quite as sweet.
  • Unsalted Butter: Creates a rich, golden crust on the potatoes and adds a nice, buttery flavor.
  • Olive Oil: Extra virgin olive oil helps achieve even browning and creates a higher smoke point for frying.
  • Fresh Thyme Leaves: Add an earthy, slightly floral note that complements the potatoes and onions. I used dried thyme once, and the flavor just wasn’t the same, so stick to fresh.
  • Fresh Parsley: Brightens the dish with color and adds a fresh, herbaceous finish. Don’t skip it!
  • Chicken or Vegetable Stock: Optional liquid adds moisture and depth. I typically use chicken broth, as it has more flavor.

How to Make Lyonnaise Potatoes

PREP POTATOES:
Add the sliced potatoes to a large pot of slightly salted, cold water. Bring to a boil, then reduce the heat. Simmer for 5 to 7 minutes until tender but not fully cooked. Drain potatoes and cool slightly.
CARAMELIZE ONIONS:
In a heavy skillet, cook the onions in 2 tablespoons of butter and 1 tablespoon olive oil over medium-low heat. Stir occasionally and cook for 15 to 20 minutes until done. Season with salt, transfer onions to a plate, and set aside.
PAN-FRY POTATOES:
Heat the remaining butter and oil over medium heat in the same skillet. Add the par-cooked potatoes in a single layer and season with salt, black pepper, and thyme. Cook for 5 to 7 minutes per side, flipping gently, until golden and slightly crispy.
COMBINE & FINISH:
As the potatoes finish cooking, transfer them to a plate. Once all are ready, add them to the skillet with the caramelized onions. Toss gently to combine, adding a splash of stock to moisten the dish, if needed. Season to taste.
SERVE & ENJOY:
Sprinkle with fresh parsley, and serve immediately. Enjoy your French potato recipe!
A plate of cooked potatoes with herbs and spices. Bookmark
A plate of cooked potatoes with herbs and spices. | foodbymary.com

Tips for the Best Lyonnaise Potatoes

One of the best things you can do for this potato side dish is to select the right spuds. Yukon Golds and Russets are perfect! Here are some of my other top tips.

  • Be gentle. Be sure to flip your potatoes gently to keep them in tact.
  • Perfect your slicing. Slice them into 1/4-inch-thick rounds. I use a madoline to make the process easier!
  • Pre-boil properly. I start the potatoes in cold (not hot) water and parboil just until fork-tender. This will ensure even cooking and prevent them from falling apart during frying. Pat them dry after parboiling to ensure crispy results.
  • Give them some space. Arrange the potato slices in a single layer with space between them. This will ensure even browning and prevent steaming. I typically cook in batches.
  • Season in stages. Season the boiling water after parboiling and as a final adjustment. This will deliver well-distributed flavor throughout.
  • Get creative! Sometimes, I add crispy bacon bits, garlic, or shallots instead of onions. You can even finish the dish with Gruyère cheese. I also love using white wine in place of chicken stock for a fun flavor twist.
A bowl of cooked potatoes with herbs. Bookmark
A bowl of cooked potatoes with herbs. | foodbymary.com

Serving Suggestions

I’ve served these French potatoes with everything from filet mignon to salmon! Here are some other perfect pairings.

  • Roast chicken or turkey
  • Steak
  • Pork chops
  • Fish
  • Beef or pork tenderloin

How to Store

I don’t recommend freezing leftover potatoes, as they’ll be mushy once they thaw out. The last thing you want is soggy potatoes! Follow these steps to store them.

  • To Store: Place the cooled Lyonnaise potatoes in an airtight container. Refrigerate for 3 to 5 days.
  • To Reheat: Heat the potatoes in a large nonstick skillet over medium-high heat for 5 to 10 minutes. Toss occasionally while heating until hot and they have a crispy texture. Or, warm them in a 350-degree oven for 10 to 15 minutes. The cooking time will vary based on your individual oven.

Frequently Asked Questions

→ What type of potatoes work best for Lyonnaise potatoes?

Yukon Golds offer a buttery flavor and hold their shape well. Russets give a crispier finish but may break more easily when cooked.

→ Can I use dried thyme instead of fresh?

Fresh thyme is preferred for its aromatic, bright flavor. Dried thyme can be used in a pinch but lacks the same depth.

→ Why do the potatoes need to be parboiled first?

Parboiling ensures the interior is tender without overcooking the outside, helping achieve that perfect crisp-soft contrast when pan-frying.

→ What’s the best way to caramelize the onions?

Cook sliced onions over medium-low heat with butter and olive oil, stirring occasionally for 15–20 minutes until golden and sweet.

→ How can I reheat leftovers without losing crispiness?

Reheat in a skillet over medium-high heat or bake in the oven at 350°F. Avoid microwaving, as it softens the texture.

→ What dishes pair well with Lyonnaise potatoes?

They pair beautifully with roast chicken, steak, salmon, pork chops, or tenderloin—any protein that complements buttery, savory sides.

Lyonnaise Potatoes French Style

Golden potatoes with caramelized onions, crisp edges, and buttery flavor.

Prep Time
15 minutes
Cooking Time
35 minutes
Overall Time
50 minutes
Recipe Author: Maria

Dish Category: Side Dishes

Recipe Difficulty: Beginner-Friendly

Cuisine: French

Serves: 4 Serving Size (1 skillet of Lyonnaise potatoes)

Dietary Options: Vegetarian, Gluten-Free

What You’ll Need to Cook

→ Main Ingredients

Ingredient 01 2 pounds Yukon Gold or Russet potatoes, peeled and sliced into 1/4-inch rounds
Ingredient 02 2 large yellow onions, thinly sliced
Ingredient 03 3 tablespoons unsalted butter
Ingredient 04 2 tablespoons extra virgin olive oil
Ingredient 05 1 tablespoon fresh thyme leaves
Ingredient 06 1 tablespoon chopped fresh parsley
Ingredient 07 Salt, to taste
Ingredient 08 Freshly ground black pepper, to taste

→ Optional

Ingredient 09 1/4 cup chicken or vegetable stock

Steps to Prepare

Step 01

Place sliced potatoes in a large pot of cold, lightly salted water. Bring to a boil, then reduce heat and simmer for 5 to 7 minutes until just tender. Drain and let cool slightly.

Step 02

In a heavy skillet, melt 2 tablespoons of butter with 1 tablespoon olive oil over medium-low heat. Add onions and cook, stirring occasionally, for 15 to 20 minutes until golden brown. Season with salt, transfer to a plate, and set aside.

Step 03

In the same skillet, heat remaining butter and oil over medium heat. Add par-cooked potato slices in a single layer. Season with salt, black pepper, and fresh thyme. Cook for 5 to 7 minutes per side, flipping gently, until golden and slightly crispy.

Step 04

Transfer potatoes to a plate as they finish cooking. Return all potatoes to the skillet with the caramelized onions. Toss gently to combine, adding a splash of stock if desired. Adjust seasoning to taste.

Step 05

Sprinkle with chopped fresh parsley and serve immediately as a side dish.

Extra Cooking Tips

  1. Use a mandoline for even slicing and crispier results.
  2. Parboil potatoes starting in cold water for even cooking.
  3. Pat potatoes dry after boiling to enhance crispness.
  4. Cook in batches to avoid overcrowding the skillet and ensure even browning.
  5. Enhance flavor with crispy bacon, garlic, shallots, or Gruyère cheese.

Must-Have Tools

  • Large pot
  • Heavy-bottomed skillet
  • Slotted spoon or spatula
  • Mandoline slicer
  • Mixing bowl

Allergen Information

Always check ingredient labels for allergens and seek expert advice if uncertain.
  • Contains dairy (butter)

Nutrition Info (Per Serving)

These details are for guidance and aren’t a replacement for professional advice.
  • Calories Count: 265
  • Fats: 12 grams
  • Carbs: 34 grams
  • Proteins: 4 grams