Classic French Lyonnaise Potatoes Recipe (Crispy Skillet Potatoes with Caramelized Onions

Classic French Lyonnaise Potatoes

Golden, crispy on the outside, tender on the inside, and coated with rich buttery caramelized onions, these Classic French Lyonnaise Potatoes are one of the most beloved French side dishes. This elegant yet simple recipe transforms everyday potatoes into a restaurant-quality accompaniment that pairs beautifully with steak, roasted chicken, pork chops, fish, or even fried eggs.

The secret to perfect French Lyonnaise potatoes is briefly parboiling the potato slices before pan-frying them. This technique creates a crispy golden crust while keeping the centers fluffy and creamy. A combination of butter and extra virgin olive oil delivers incredible flavor while preventing the butter from burning, and fresh parsley adds a burst of freshness just before serving.

Whether you’re preparing a holiday dinner, Sunday roast, or an easy weeknight meal, this classic French potato recipe is guaranteed to impress.

Why You’ll Love This Recipe

• Crispy golden potato slices with tender centers
• Sweet, buttery caramelized onions in every bite
• Easy ingredients found in any grocery store
• Authentic French comfort food
• Perfect side dish for beef, chicken, pork, seafood, or eggs
• Naturally vegetarian
• Great for holiday dinners and family meals

Ingredients

• 2¼ pounds (1 kg) firm potatoes for frying (6–8 medium potatoes)
• 2 large onions, thinly sliced
• 4 tablespoons unsalted butter, divided
• 2 tablespoons extra virgin olive oil, divided
• 2 garlic cloves, finely minced
• 2 tablespoons fresh parsley, chopped
• 1¼ teaspoons salt
• ½ teaspoon freshly ground black pepper

Instructions

1. Prepare the Potatoes

Peel the potatoes and slice them into even ¼-inch (4–5 mm) rounds. Rinse thoroughly under cold water to remove excess starch, then dry completely with paper towels. Removing moisture helps create beautifully crispy potatoes.

2. Parboil

Bring a large pot of salted water to a boil. Add the potato slices and cook for 4–5 minutes until the edges are just beginning to soften but the centers remain firm. Drain well and spread the potatoes on a baking sheet or tray to cool completely and allow any remaining moisture to evaporate.

3. Caramelize the Onions

Heat 2 tablespoons of butter with 1 tablespoon of olive oil in a large skillet over medium-low heat. Add the sliced onions along with a small pinch of salt. Cook for 12–15 minutes, stirring occasionally, until the onions become soft, sweet, and lightly golden. If they begin sticking, add a tablespoon of water to deglaze the pan. Transfer the onions to a plate and set aside.

4. Crisp the Potatoes

In the same skillet, heat the remaining butter and olive oil over medium-high heat. Arrange the potatoes in a single layer without overcrowding the pan. Cook undisturbed for 4–5 minutes until the underside becomes deep golden brown. Carefully flip each slice and cook for another 3–4 minutes until both sides are crisp and beautifully browned. Work in batches if necessary.

5. Finish the Dish

Return the caramelized onions to the skillet. Add the minced garlic and cook for about one minute until fragrant. Season with salt and black pepper, then sprinkle with fresh parsley. Toss gently to combine while keeping the potato slices intact.

6. Serve

Allow the potatoes to rest for 2 minutes before serving. Enjoy immediately while hot and crispy.

Benefits of French Lyonnaise Potatoes

This classic French side dish offers more than incredible flavor.

• Potatoes provide complex carbohydrates for lasting energy.
• Onions are naturally rich in antioxidants and add sweetness without extra sugar.
• Garlic contributes bold flavor and beneficial plant compounds.
• Fresh parsley adds vitamins, freshness, and vibrant color.
• Cooking with butter and olive oil creates a rich taste while helping achieve the perfect golden crust.

Expert Tips for Perfect Lyonnaise Potatoes

• Choose Yukon Gold, Maris Piper, or other waxy potatoes that hold their shape well.
• Always dry the potatoes thoroughly after rinsing and parboiling for maximum crispiness.
• Avoid overcrowding the skillet. Cook in batches if needed.
• Let the potatoes cook without moving them to develop a deep golden crust.
• Use a combination of butter and olive oil to prevent burning while adding rich flavor.
• Slice the potatoes evenly so they cook at the same rate.
• Caramelize the onions slowly over medium-low heat for the sweetest flavor.
• Finish with fresh parsley just before serving for the best color and freshness.

Serving Suggestions

French Lyonnaise Potatoes pair wonderfully with:

• Grilled steak
• Roast chicken
• Pork chops
• Baked salmon
• Roast turkey
• Lamb chops
• Fried or poached eggs
• Fresh green salad

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days.

Reheating

Reheat in a hot skillet with a small amount of butter or olive oil until crispy again. Avoid microwaving if possible, as it softens the potatoes.

Frequently Asked Questions

What are Lyonnaise potatoes?

Lyonnaise potatoes are a traditional French side dish made with pan-fried potato slices, caramelized onions, butter, and fresh parsley.

Can I make them ahead of time?

Yes. You can parboil the potatoes and caramelize the onions a day in advance. Finish frying the potatoes just before serving for the best texture.

Which potatoes are best?

Yukon Gold, Maris Piper, or other medium-starch potatoes produce the best balance of crispy edges and creamy interiors.

Why should I parboil the potatoes?

Parboiling helps the potatoes cook evenly and creates an extra crispy exterior once pan-fried.

Can I add cheese?

While the traditional French recipe does not include cheese, a sprinkle of freshly grated Gruyère or Parmesan makes a delicious variation.