Best Copycat Ruths Chris Potatoes Au Gratin Recipe

Copycat Ruths Chris Potatoes Au Gratin

Oh my goodness, get ready to experience a side dish that’s nothing short of legendary! When I think of ultimate comfort food, elevated to a whole new level of gourmet, my mind immediately goes to the iconic Potatoes Au Gratin served at Ruth’s Chris Steak House. And guess what? I’ve cracked the code!

This Copycat Ruths Chris Potatoes Au Gratin recipe is truly special because it brings that sophisticated, melt-in-your-mouth experience right into your kitchen. We’re talking about paper-thin slices of tender potato, bathed in a luxuriously rich, creamy sauce that’s bursting with savory flavor, all nestled between generous layers of gooey, perfectly melted cheese. It’s not just a potato dish; it’s an event!

You, my friend, are absolutely going to love this. Why? Because it’s a showstopper! Imagine pulling a bubbling, golden-crusted dish from your oven, the aroma of cheese and cream filling your home. It’s incredibly satisfying to make, and even more so to eat. This isn’t just a side; it’s a centerpiece that perfectly complements a beautiful roast beef dinner or makes any weeknight feel like a special occasion. It’s everything you adore about the classic potatoes au gratin, but with that unmistakable Ruth’s Chris touch of pure indulgence that makes every bite feel like a celebration.

Ingredient Notes

Creating a spot-on copycat of Ruth’s Chris Potatoes Au Gratin means focusing on quality ingredients that contribute to its incredibly rich and luxurious texture and flavor. I’ve experimented a lot, and these are the components I’ve found to be essential for that signature indulgence.

• Potatoes: For this dish, I really prefer using Yukon Gold potatoes. Their waxy texture means they hold their shape beautifully when sliced thinly, and they contribute a creamy, buttery flavor even before adding any dairy. Russets can also work if you prefer a slightly starchier, softer outcome, but I find Yukon Golds truly elevate this particular gratin. Aim for about 3 pounds to fill a standard 9×13-inch baking dish.
• Heavy Cream and Whole Milk: This is where the magic happens! A combination of heavy cream and whole milk creates a sauce that’s rich without being cloyingly thick. The high fat content in the heavy cream gives it that restaurant-quality mouthfeel, while the whole milk helps to lighten it just a touch and makes for a more balanced sauce. I wouldn’t recommend substituting with low-fat dairy here; it just won’t give you the desired luxuriousness.
• Cheese: For that distinctive Ruth’s Chris flavor, a blend is key. I always use freshly grated Gruyère cheese, which melts beautifully and provides a wonderfully nutty, earthy complexity. To round it out, I add a good quality sharp white cheddar for a bit of tangy bite and a sprinkle of fresh Parmesan for that salty, umami kick and a fantastic golden crust. Always grate your own cheese – pre-shredded varieties often contain anti-caking agents that can make your sauce gritty.
• Aromatics: Fresh garlic and finely minced shallots are non-negotiable for building the foundational flavor of the creamy sauce. They add depth and a subtle sweetness that complements the richness of the dairy and cheese without overpowering the potatoes. A little bit goes a long way.
• Butter and Flour: A classic béchamel-style sauce starts with a roux made from unsalted butter and all-purpose flour. This combination acts as the thickening agent for our creamy sauce, ensuring it’s smooth and coats every potato slice perfectly.
• Seasonings: Beyond salt and freshly ground white pepper (which I prefer over black pepper in cream sauces to keep it pristine-looking), a tiny pinch of freshly grated nutmeg is absolutely crucial. It’s a classic pairing with potato and cream dishes and adds a warm, almost mysterious depth of flavor that truly sets this gratin apart.

Step-by-Step Instructions

Getting this Copycat Ruth’s Chris Potatoes Au Gratin just right is all about careful preparation and layering. Here’s how I tackle it to achieve that perfectly tender, cheesy, and creamy masterpiece.

1. Prepare the Potatoes: First, I peel the Yukon Gold potatoes. The most critical step here is slicing them thinly and uniformly. I highly recommend using a mandoline slicer for this; it ensures consistent thickness (around 1/8-inch or 3mm) which is key for even cooking. If you don’t have one, a very sharp knife and a steady hand will work, but take your time. Once sliced, I give them a quick rinse under cold water to remove excess starch and then pat them thoroughly dry with paper towels.
2. Make the Creamy Cheese Sauce: In a medium saucepan, I melt 4 tablespoons of unsalted butter over medium heat. Once it’s shimmering, I add the finely minced shallots and cook them until they’re softened and fragrant, about 2-3 minutes. Then, I stir in the minced garlic and cook for another minute until aromatic, being careful not to let it brown. Next, I sprinkle in 4 tablespoons of all-purpose flour, stirring constantly for about 1-2 minutes to create a smooth roux. This step cooks out the raw flour taste.
3. Build the Sauce: Gradually, I whisk in 2 cups of whole milk into the roux, making sure there are no lumps. Once it’s smooth, I slowly pour in 2 cups of heavy cream, continuing to whisk. I bring the mixture to a gentle simmer, stirring frequently, and let it cook for about 5-7 minutes, until it has thickened slightly. Remove the saucepan from the heat, then stir in 1 cup of the grated Gruyère, 1/2 cup of the sharp white cheddar, and 1/4 cup of the Parmesan cheese. I season the sauce generously with 1 teaspoon of salt, 1/2 teaspoon of white pepper, and a tiny pinch of freshly grated nutmeg. Taste and adjust seasoning if needed – remember, the potatoes themselves won’t be seasoned individually.
4. Assemble the Gratin: Preheat your oven to 375°F (190°C). I lightly grease a 9×13-inch baking dish with butter. I arrange about one-third of the sliced potatoes in an even layer at the bottom of the prepared dish, slightly overlapping them. Then, I pour about one-third of the creamy cheese sauce evenly over the potatoes. I sprinkle about one-third of the remaining Gruyère and cheddar cheese mixture over the sauce. I repeat this layering process two more times, ending with a generous layer of sauce and then the remaining cheese on top.
5. Bake to Perfection: I cover the baking dish tightly with aluminum foil and bake it for 50 minutes. This initial covered baking allows the potatoes to steam and become tender without drying out. After 50 minutes, I remove the foil and continue baking for another 30-40 minutes, or until the top is beautifully golden brown, bubbly, and the potatoes are fork-tender. If the top browns too quickly, you can loosely tent it with foil again.
6. Rest Before Serving: This is a crucial step! Once out of the oven, I let the Potatoes Au Gratin rest for at least 15-20 minutes before serving. This allows the sauce to set properly and the flavors to meld, making it much easier to serve clean, beautiful portions.

Tips & Suggestions

To truly nail that Ruth’s Chris experience with your Potatoes Au Gratin, I’ve gathered a few key tips and suggestions that I’ve learned along the way:

• Mandoline for Uniform Slices: I cannot stress this enough – a mandoline slicer is your best friend for this recipe. Uniformly thin slices (about 1/8-inch) ensure that all the potatoes cook evenly at the same rate, resulting in that perfectly tender, never-crunchy texture. Inconsistent slices can lead to some potatoes being undercooked while others are perfectly done.
• Don’t Skimp on Quality Cheese: The cheese is a star here. I always recommend using freshly grated, good quality Gruyère for its nutty complexity and excellent melting properties. Pairing it with a sharp white cheddar adds a lovely tang, and a sprinkle of Parmesan boosts the umami. Avoid pre-shredded cheeses; they often contain starches that can make your sauce grainy.
• Season the Sauce, Not Each Layer: It’s easier and more effective to season your entire cream sauce well, rather than trying to sprinkle salt and pepper on each potato layer. This ensures consistent flavor throughout the dish. Remember to taste the sauce before layering!
• Prevent Curdling: When adding the cheese to your sauce, make sure the saucepan is off the heat. Stirring cheese into a fiercely boiling sauce can cause it to seize or curdle. Gentle heat and constant stirring are the keys to a silky-smooth cheese sauce.
• The Importance of Resting: While it’s tempting to dive right into this deliciousness, please resist! Letting the gratin rest for 15-20 minutes after baking is vital. It allows the hot, bubbly sauce to thicken and set, which means less watery plates and beautifully intact slices when you serve.
• Make Ahead Option: You can assemble the entire gratin up to 24 hours in advance. Simply cover it tightly with plastic wrap and refrigerate. When ready to bake, let it sit at room temperature for about 30 minutes before baking as directed, adding an extra 10-15 minutes to the covered baking time to ensure it heats through.
• Serving Suggestions: This Potatoes Au Gratin is the ultimate indulgence and pairs perfectly with a classic steak, a juicy roast beef, or even a simple grilled chicken. It’s rich enough to be the star side dish, so keep your main course relatively simple to let it shine.

Storage

Once you’ve made this incredible Copycat Ruth’s Chris Potatoes Au Gratin, you might find yourself with leftovers (though I rarely do!). Here’s how I recommend storing and reheating to maintain its deliciousness.

• Refrigeration: Any leftover Potatoes Au Gratin should be cooled completely to room temperature before being transferred to an airtight container. It will keep beautifully in the refrigerator for up to 3-4 days.
• Reheating: For the best results, I always recommend reheating au gratin in the oven. This helps to crisp up the cheesy top layer again, which can get a little soft in the fridge. Preheat your oven to 325°F (160°C). Place the leftovers in an oven-safe dish, cover loosely with foil to prevent drying, and bake for 20-30 minutes, or until heated through and bubbly. If you want extra crispness, remove the foil for the last 5-10 minutes. While you can microwave individual portions, I find it often makes the potatoes a bit softer and the cheese less appealing.
• Freezing: Freezing Potatoes Au Gratin is generally not ideal, as cream-based dishes can sometimes separate or become grainy in texture once thawed and reheated. The potatoes themselves can also become a bit mealy. However, if you absolutely must freeze it, cool the gratin completely, then wrap it tightly in plastic wrap and then aluminum foil. It can be frozen for up to 1-2 months. Thaw overnight in the refrigerator before reheating in the oven as described above. Be prepared for a slight change in texture compared to freshly baked.

Final Thoughts

There’s something truly magical about a perfectly executed side dish, and I genuinely believe this Copycat Ruths Chris Potatoes Au Gratin embodies that magic. It’s not just a potato dish; it’s an experience. The layers of tender potato, bathed in a rich, creamy sauce and blanketed with golden, bubbling cheese, create an irresistible symphony of flavors and textures that you’ll crave long after the last bite.

When you serve this Copycat Ruths Chris Potatoes Au Gratin, you’re not just putting food on the table; you’re creating a moment. It’s the kind of indulgent comfort food that elevates any meal, making a weeknight dinner feel like a celebration or a special occasion truly unforgettable. I truly hope you take the plunge and try making this recipe. I promise, the effort is so worth it for that first incredible, creamy, cheesy bite. Your taste buds (and your guests!) will thank you!