Classic Ruth’s Chris-Style Potatoes Au Gratin Recipe | Creamy & Cheesy Side Dish

Written By Ellie

Hi, I’m Ellie — the creator of Treatiful, your cozy little corner for quick and delicious mug recipes. From sweet microwave treats to savory comfort bites, every recipe is easy to make, microwave-friendly, and made with a little extra love.

Classic Ruth’s Chris-Style Potatoes Au Gratin Recipe | Creamy & Cheesy Side Dish

Ruths Chris-Style Potatoes Au Gratin are the epitome of steakhouse luxury that you can recreate at home. Imagine layers of thinly sliced potatoes bathed in a velvety cheese sauce, with that signature golden-brown crust that makes your fork crackle as it breaks through. Every time I make these, my kitchen fills with the most intoxicating aroma of bubbling cheese and herbs. They’re decadent yet surprisingly simple to prepare—the kind of side dish that elevates any meal to special-occasion status, even when you’re just craving a little comfort food.

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Classic Ruth’s Chris-Style Potatoes Au Gratin Recipe | Creamy & Cheesy Side Dish

Classic Ruth’s Chris-Style Potatoes Au Gratin Recipe

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  • Author: Ellie
  • Prep Time: 15 minutes
  • Cook Time: 60 minutes
  • Total Time: 1 hour 15 minutes
  • Yield: 6 servings
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

These creamy, cheesy Potatoes Au Gratin are inspired by Ruth’s Chris Steakhouse. Thinly sliced potatoes baked in a rich cheese sauce until golden and bubbly – the ultimate comfort side dish.


Ingredients

3 cups thinly sliced potatoes

2 tbsp butter

2 tbsp flour

1 1/2 cups milk

1 cup heavy cream

1 1/2 cups shredded cheddar cheese

1/2 cup grated Parmesan cheese

2 cloves garlic (minced)

Salt & pepper to taste

Optional: chopped parsley


Instructions

1. Preheat oven to 180°C (350°F) and grease a baking dish.

2. Melt butter in a pan, then whisk in flour to form a roux.

3. Gradually add milk and cream, stirring until smooth.

4. Add garlic, salt, and pepper.

5. Stir in cheddar and Parmesan cheese until melted.

6. Layer sliced potatoes in the baking dish.

7. Pour cheese sauce evenly over the potatoes.

8. Cover and bake for 40 minutes.

9. Uncover and bake another 15–20 minutes until golden and bubbly.

10. Garnish with parsley and serve hot.


Notes

Slice potatoes evenly for consistent cooking.

Use Gruyère cheese for a richer flavor.

Let rest 5–10 minutes before serving.

Perfect side for steak or chicken.

Why You’ll Love This Ruths Chris-Style Potatoes Au Gratin

Restaurant-Quality Results at Home

These potatoes au gratin aren’t just delicious—they’re a showstopper that rivals the famous steakhouse version. The secret lies in the perfect balance of cheeses (sharp cheddar for flavor, Gruyère for that stretchy melt) and heavy cream that reduces into a sauce that coats each potato slice like a dream. I love how the edges get all crispy and caramelized while the center stays creamy. The fresh thyme and subtle garlic notes perfume every bite without overwhelming the dish. Trust me, your family will think you secretly hired a professional chef!

Make-Ahead Convenience

One thing I adore about this recipe is its flexibility with timing. You can assemble everything up to 24 hours before baking—just cover tightly and refrigerate. This makes it perfect for holiday gatherings or dinner parties when you want to minimize last-minute chaos. The flavors actually develop beautifully during this rest time, allowing the cream to start working its magic on the potatoes. I’ve even found that slicing the potatoes ahead and storing them in cold water prevents browning and helps remove excess starch for a creamier final texture.

Essential Tips & Tricks

Selecting and Preparing the Potatoes

Choosing the right potatoes makes all the difference in this dish. Yukon Golds are my go-to because they have the perfect starch content to remain intact while absorbing the creamy sauce. Russets work too, but they tend to break down more. Slice them to a uniform 1/8-inch thickness—this is where a mandoline becomes your best friend (just watch those fingers!). I like to pat the potato slices dry after slicing to remove excess moisture, which helps the sauce cling better. Don’t skip the step of layering them with a slight overlap; this creates those beautiful distinct layers you see in restaurant dishes.

Perfecting the Cheese Sauce

The soul of these potatoes au gratin is the cheese sauce, and getting it right is crucial. Start by warming your cream with aromatics (garlic, thyme, bay leaf) to infuse flavor before adding cheese. Never let it boil or your sauce might break! I always grate my cheese fresh rather than using pre-shredded, which contains anti-caking agents that can make your sauce grainy. Add the cheese gradually, stirring until each addition melts completely before adding more. A pinch of nutmeg might seem small, but it’s that secret ingredient that makes people wonder why your potatoes taste so amazing.

Serving Ideas & Creative Variations

Perfect Pairings

These Ruths Chris-Style Potatoes Au Gratin shine brightest alongside a perfectly cooked protein centerpiece. They’re traditionally served with steak—the richness of the potatoes complements a juicy ribeye or filet mignon beautifully. But don’t limit yourself! I’ve paired them with roasted chicken, grilled salmon, and even as the star alongside a simple green salad for meatless Monday. The key is to embrace their richness rather than compete with it. A bright, acidic side like roasted Brussels sprouts with balsamic creates the perfect balance to cut through the creaminess.

Exciting Flavor Twists

While the classic version is divine, I love experimenting with flavor variations that maintain the luxurious texture while offering something new. Try adding caramelized onions between the potato layers for sweet depth, or fold roasted garlic into the cheese sauce for an earthy punch. Smoked gouda can replace some of the Gruyère for a campfire twist. For a hint of heat, add a pinch of cayenne or some thinly sliced jalapeños. My brunch favorite involves adding crispy bacon bits and serving with eggs. The base recipe is so versatile that it welcomes your creative touches while still honoring the steakhouse original.

Storage & Troubleshooting Guide

Proper Storage and Reheating

Leftover potatoes au gratin (if you’re lucky enough to have any!) will keep beautifully in the refrigerator for up to 4 days in an airtight container. For reheating, avoid the microwave which can make them rubbery. Instead, cover with foil and warm in a 325°F oven until heated through, about 15-20 minutes. To freeze, cool completely, wrap tightly in plastic wrap and foil, and freeze for up to 2 months. Thaw overnight in the refrigerator before reheating. The texture might change slightly after freezing, but a splash of cream drizzled over top before reheating helps restore their luxurious creaminess.

Common Issues and Solutions

Even experienced cooks can encounter challenges with potatoes au gratin. If your sauce appears curdled or separated, it’s likely because the heat was too high when adding cheese. Next time, remove the pan from heat before incorporating cheese, and add it gradually. Undercooked, crunchy potatoes usually mean they were sliced too thick or the baking time was insufficient. Test doneness by inserting a knife—it should glide through easily. If the top browns too quickly before potatoes are tender, simply cover with foil for the remaining bake time. Remember that different baking dishes conduct heat differently, so cooking times may need adjusting.

Frequently Asked Questions

Can I make Ruths Chris-Style Potatoes Au Gratin without heavy cream?

You can substitute half-and-half or whole milk, but the sauce won’t be as rich. For a non-dairy version, try full-fat coconut milk with a tablespoon of cornstarch to help thicken.

What’s the difference between potatoes au gratin and scalloped potatoes?

Traditional potatoes au gratin contain cheese in the sauce and often have a breadcrumb topping, while scalloped potatoes are usually made with a cream sauce without cheese.

How thin should I slice the potatoes?

Aim for 1/8-inch thickness for perfect Ruths Chris-Style Potatoes Au Gratin. Too thin, they’ll disintegrate; too thick, they won’t cook through properly.

Can I prepare this dish in advance?

Absolutely! Assemble up to 24 hours ahead and refrigerate. Allow an extra 10-15 minutes of baking time if cooking directly from the refrigerator.

What cheeses work best for authentic flavor?

For authentic flavor, use a combination of sharp cheddar and Gruyère. Parmesan adds nice depth, while fontina or Emmental make good Gruyère substitutes.

Final Thoughts

These Ruths Chris-Style Potatoes Au Gratin have become my signature side dish for good reason—they consistently impress without requiring professional culinary skills. The combination of creamy interior and crispy top creates a texture contrast that makes each bite exciting. Whether you’re hosting a special dinner or simply treating yourself to something extraordinary, these potatoes deliver restaurant quality with homemade love. Find more inspiration for sides and mains on my Pinterest where I’m always sharing new favorites!

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