Ruth’s Chris Lyonnaise Potatoes Recipe: Buttery French-Style Side Dish

These French-style potatoes deliver the rich, buttery flavor that made Ruth’s Chris famous, right in your own kitchen. A simple technique transforms ordinary potatoes into a luxurious side dish with golden edges and tender centers.

The secret lies in par-cooking the potatoes before giving them a final sear in butter. This ensures they cook through without burning, while developing that signature golden brown crust. Thinly sliced onions add sweetness that balances the richness perfectly.

You’ll end up with potatoes that are crispy outside, creamy inside, and infused with deep, caramelized flavor. The buttery sauce coats every bite, making this side dish worthy of any steakhouse meal.

Perfect alongside steak, chicken, or fish, this recipe brings restaurant-quality results to your dinner table.

Ingredients for Ruth’s Chris Lyonnaise Potatoes

Pantry staples meet French technique for this steakhouse-worthy side dish.

Russets are non-negotiable here—their high starch content gives that perfect creamy interior. Idaho potatoes from the grocery store work great, but grab the biggest ones you can find (fewer to peel). The butter is doing heavy lifting, so splurge on a good European brand like Plugrá or Kerrygold. Onions should be sweet and fresh—skip the pre-cut ones (they lose too much moisture).

No white wine? Substitute chicken broth with a splash of lemon juice. Vegetable stock works if you’re avoiding meat. Fresh parsley adds that restaurant finish, but dried at half the amount in a pinch. The wine deglaze is key for that caramelized depth, but skip it entirely if cooking for kids—just add an extra splash of stock. Garlic can be swapped for shallots for a milder bite.

These potatoes are best served fresh, but leftovers reheat well in a skillet with a little extra butter. Store in the fridge for up to 3 days—the onions will soften more over time. Not freezer-friendly, but honestly, they won’t last that long.

Step-by-Step Instructions for Buttery French-Style Lyonnaise Potatoes

This method delivers crispy, caramelized potatoes with a rich, savory depth that’s pure restaurant quality.

Step 1: Par-Cook the Russet Potatoes

Peel and slice the 2 lb Russet Potatoes into ¼-inch thick rounds. Rinse them under cold water to remove excess starch, which helps achieve maximum crispiness. Pat them thoroughly dry with a clean towel—moisture is the enemy of browning.

Heat the 2 tbsp Extra-Virgin Olive Oil in a large skillet over medium-high heat. Add the sliced potatoes and cook for 8-10 minutes, stirring occasionally, until they begin to soften but haven’t yet browned. This step ensures the potatoes cook through evenly before developing that golden crust.

Step 2: Caramelize the Onions and Deglaze

While the potatoes par-cook, thinly slice the 1 whole Yellow Onion into half-moons. Once the potatoes are tender, push them to one side of the skillet and add 2 tbsp Unsalted Butter to the empty space. Add the onions and cook for 5-6 minutes, stirring frequently, until they turn golden brown and sweet.

Pour in the 0.25 cup Dry White Wine and 0.25 cup Chicken Stock, using a wooden spoon to scrape up any browned bits from the bottom of the pan. This deglazing step builds layers of flavor. Let the liquid reduce by half, about 3-4 minutes, before proceeding.

Step 3: Crisp the Potatoes and Finish with Butter

Spread the potatoes and onions evenly in the skillet. Reduce the heat to medium and let them cook undisturbed for 5-7 minutes until the potatoes develop a deep, golden-brown crust on the bottom. Resist the urge to stir—this is how you get that coveted crispiness.

Flip the potatoes and add the remaining 0.75 cup Unsalted Butter (minus the 2 tbsp already used) in small pats around the pan. Sprinkle with 1.5 tsp Kosher Salt and 0.5 tsp Freshly Ground Black Pepper. Cook for another 5 minutes until the potatoes are crispy all over and the onions are caramelized.

Step 4: Add Aromatics and Garnish

Stir in the minced 3 cloves Garlic Cloves and cook for 1 minute until fragrant—don’t let it burn. The garlic should perfume the oil without turning bitter.

Transfer the potatoes to a serving dish and garnish with the 0.25 cup Fresh Parsley. The parsley adds a pop of color and freshness that balances the richness of the butter and onions. Serve immediately while the potatoes are still crispy and hot.

Perfect Pairings for These Flavors

Steakhouse Classics

These potatoes were practically made for a perfectly cooked filet mignon or ribeye. The buttery richness complements any cut of beef beautifully. I often serve them with a 12-ounce steak for the ideal protein-to-side ratio. 🔥

Poultry Pairings

Try them alongside herb-roasted chicken or pan-seared duck breast. The caramelized onions pick up the poultry’s natural juices, creating an incredible flavor synergy. A whole roasted chicken with these potatoes makes for an impressive Sunday dinner.

Seafood Matches

For a lighter meal, pair with grilled salmon or seared scallops. The acidity from the white wine deglaze cuts through the richness of the seafood. I particularly love these with blackened mahi-mahi for a restaurant-worthy plate.

Vegetarian Options

Serve as the star of a veggie plate with roasted asparagus and sautéed mushrooms. The potatoes are hearty enough to satisfy even without meat. A sprinkle of Parmesan cheese on top adds an extra layer of umami.

Wine Recommendations

A crisp Sauvignon Blanc or buttery Chardonnay pairs wonderfully with these potatoes. For red wine lovers, a Pinot Noir offers the perfect balance. I always recommend serving the same wine you cooked with for maximum harmony. 🍷

Bread and Salad

Round out the meal with a crusty baguette to soak up the buttery sauce and a simple green salad with lemon vinaigrette. The acidity from the salad cuts through the richness of the potatoes beautifully.

Frequently Asked Questions