As I flipped through my recipe book, I stumbled upon a gem that took me back to cozy family dinners filled with laughter and warmth. This Copycat Ruth’s Chris Potatoes au Gratin is my go-to comfort food, effortlessly marrying creamy textures with a luscious cheese topping that makes every bite a delight. A crowd-pleaser for any occasion, this dish not only offers a taste of indulgence but also provides a quick prep time, making it perfect for busy weeknights or weekend gatherings. It’s a family-friendly side dish that pairs beautifully with roasted meats or can stand proudly on its own at your dinner table. Are you ready to bring the tastes of a fine dining experience right into your kitchen?

Why are Potatoes au Gratin so loved?
Comforting, creamy goodness: This indulgent dish delivers an unmatched blend of textures and flavors that will leave you craving more.
Ease of preparation: With just a few simple steps, you can create a restaurant-worthy side dish perfect for any occasion.
Crowd-pleaser: Whether for a cozy family dinner or a festive gathering, these potatoes are a guaranteed hit among guests of all ages.
Versatile pairings: Complement them with grilled steak or roasted chicken, or enjoy them as a delicious standalone treat. If you’re looking for more sides, check out Parmesan Chicken Potatoes for added variety.
Make-ahead friendly: Prep this dish in advance, and bask in the ease of simply popping it in the oven when it’s time to serve.
Potatoes au Gratin Ingredients
• Here’s what you need for delightful Potatoes au Gratin.
For the Creamy Base
- Butter – Adds richness and helps to grease the dish; extra can be used for greasing.
- Onion – Provides a savory base flavor; can substitute with shallots for a milder taste.
- Garlic – Enhances the overall flavor; consider using garlic powder as a substitute if necessary.
- Salt – For seasoning the dish; adjust to taste.
- Black Pepper – Adds heat and balances the richness; freshly ground is recommended.
- Chicken Stock – Forms the sauce base and adds depth; vegetable stock can be used for a vegetarian option.
- Heavy Cream – Key for creaminess and texture; substitutions include half-and-half for lighter versions, though this will alter consistency.
For the Potatoes
- Russet Potatoes – The main component; approximately 5-6 potatoes, sliced 1/8 inch thick; can substitute with Yukon Gold for a buttery flavor.
For the Cheese Topping
- Shredded Cheese – A mix of Cheddar, Fontina or Provolone, and Parmesan provides a rich, melty topping; any good melting cheese can be used.
For Garnish
- Chopped Parsley – Adds a touch of freshness; alternatives include chives or thyme.
Step‑by‑Step Instructions for Creamy Copycat Ruth’s Chris Potatoes au Gratin
Step 1: Preheat the Oven
Start by preheating your oven to 425°F (220°C). This ensures that your Potatoes au Gratin will bake evenly and achieve that beautiful golden top. Set your oven rack to the center, allowing ample space for the heat to circulate around your dish.
Step 2: Sauté the Aromatics
In a medium skillet, melt a generous amount of butter over medium heat. Once melted, add the chopped onion and sauté until it becomes soft and translucent, about 3-4 minutes. Then, stir in the minced garlic, salt, and black pepper, cooking for an additional minute until fragrant and golden, infusing your kitchen with delightful aromas.
Step 3: Create the Creamy Base
Pour the chicken stock and heavy cream into the skillet with the sautéed onion and garlic mixture. Stir everything together, ensuring a flavorful blend to coat your potatoes later. Finally, add the thinly sliced russet potatoes, mixing them gently to ensure they are well-coated with the creamy sauce.
Step 4: Simmer the Potatoes
Cover the skillet with a lid and let the potato mixture simmer over medium-low heat for about 15-20 minutes. Stir occasionally to prevent sticking and ensure even cooking. You’ll know it’s ready when the potatoes are nearly tender but not fully cooked, allowing them to finish baking perfectly in the oven.
Step 5: Prepare the Baking Dish
While the potatoes are simmering, take an 8×8-inch baking dish and grease it with a bit more butter or oil. This step will help your creamy Potatoes au Gratin release easily and develop a golden crust as it bakes. If you prefer, you can also use individual ramekins for personalized servings.
Step 6: Assemble the Dish
Carefully transfer the hot potato and sauce mixture into the greased baking dish, spreading it out evenly. Be sure to scoop up some of that rich sauce, as it enhances the creaminess of every bite. Make sure the potatoes are well distributed for even baking and flavor.
Step 7: Add Cheese Topping
Sprinkle a generous layer of shredded cheese over the potatoes in the baking dish, ensuring that you cover the entire surface for a gooey, melty finish. A mix of cheddar, fontina, and parmesan works beautifully here. The cheese will become bubbly and golden as it bakes, adding a delightful crunch on top.
Step 8: Bake to Perfection
Place the baking dish in the preheated oven and bake for 10-15 minutes, or until the cheese is wonderfully bubbly and golden brown. Keep an eye on it as it bakes, as the perfect finish should be rich in color and aroma, emitting a mouthwatering invitation to sit down and enjoy.
Step 9: Rest and Garnish
Once baked, remove your Potatoes au Gratin from the oven and allow it to rest for about 5 minutes. This resting period allows the flavors to meld beautifully. Just before serving, sprinkle the top with freshly chopped parsley for a pop of color and hint of freshness, enhancing this comforting dish.

How to Store and Freeze Potatoes au Gratin
Fridge: Store leftovers in an airtight container for up to 3 days. Before refrigerating, allow the potatoes to cool completely to maintain their texture and flavor.
Freezer: For longer storage, freeze the assembled but unbaked Potatoes au Gratin for up to 2 months. Wrap tightly in plastic wrap and then in foil to prevent freezer burn.
Reheating: To reheat, bake from frozen at 375°F (190°C) for 45-60 minutes. If thawed, simply reheat at 350°F (175°C) for about 20-30 minutes until heated through.
Make-Ahead Tips: You can assemble Potatoes au Gratin a day ahead. Just cover and refrigerate; add a few extra minutes to baking time if taken directly from the fridge.
Potatoes au Gratin Variations & Substitutions
Feel free to mix things up with these delightful variations that let your creativity shine!
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Vegetarian Delight: Swap chicken stock for vegetable stock to create a vegetarian-friendly version, maintaining that rich flavor.
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Swap the Cheese: Use Gruyère or Swiss for a nutty twist! These cheeses melt beautifully and elevate the dish, providing a gourmet touch.
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Add Spinach: Stir in blanched spinach for a burst of color and nutrients. The vibrant green complements the creamy potatoes, making it both a feast for the eyes and the palate.
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Heat Things Up: For a spicy kick, add diced jalapeños or a dash of hot sauce. This twist can awaken your taste buds and give your comfort food a fun zing.
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Creamy Alternative: For a lighter version, substitute half-and-half for heavy cream. While it may slightly alter the richness, your dish will still be wonderfully creamy and enjoyable.
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Texture Twist: Top with panko breadcrumbs mixed with garlic and parmesan for an extra crunchy topping. Broil for the last couple of minutes for a golden brown finish.
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Herb Infusion: Experiment with fresh herbs like thyme or rosemary in place of parsley. Their earthy notes can transform your dish’s aroma and flavor profile.
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Quick Prep: If you’re short on time, use pre-packaged shredded potatoes. They save time on prep, allowing you to whip up this dish in a flash! For a classic potato flavor, check out my recipe for Garlic Shrimp Gratin, perfect for a quick and delicious meal.
Make Ahead Options
These Copycat Ruth’s Chris Potatoes au Gratin are perfect for meal prep enthusiasts! You can sauté the onions and garlic, then combine them with the chicken stock and heavy cream, up to 24 hours in advance. Store this mixture in an airtight container in the refrigerator. Additionally, your potatoes can be sliced and soaked in cold water to prevent browning, making them ready for assembly when the time comes. When you’re ready to bake, simply combine the potato mixture in your greased baking dish, top with cheese, and pop it in the oven for 10-15 minutes until bubbly and golden. This way, you’ll enjoy a comforting side dish with minimal effort, making busy weeknights feel effortless!
What to Serve with Copycat Ruth’s Chris Potatoes au Gratin
Imagine a table set for a cozy gathering, surrounded by laughter and the aroma of rich, creamy comfort. Pairing the indulgent potatoes with perfectly complementary dishes will elevate your meal to pure bliss.
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Grilled Steak: The robust flavors of a juicy steak contrast beautifully with the creamy richness of the potatoes, creating a delightful dining experience. The sizzling meat adds a savory depth that balances the dish’s comfort food vibes.
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Roasted Chicken: Tender, herb-marinated chicken provides a lean source of protein that harmonizes wonderfully with the buttery potatoes, making it a classic match. The crispy skin and juicy interior offer a satisfying texture that ties the meal together.
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Garlic Green Beans: Fresh, crisp green beans sautéed with garlic bring a vibrant crunch to your plate, cutting through the creaminess of the potatoes. This pairing adds a pop of color and nutrients, ensuring a well-rounded meal.
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Caesar Salad: A crisp Caesar salad, with its crunchy romaine and creamy dressing, offers a refreshing contrast to the rich potatoes. The tangy flavors of the dressing accentuate the cheese’s creaminess, making every bite more enjoyable.
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Cranberry Sauce: A spoonful of sweet-tart cranberry sauce introduces a delightful contrast to the dish’s richness, providing a burst of flavor that cuts through the creamy texture. It’s a nostalgic addition that reminds you of holiday feasts.
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Sparkling Wine: A glass of chilled sparkling wine elevates the entire dining experience, its bubbly nature enhancing the comforting flavors of the potatoes. The acidity complements the richness, making each sip a refreshing pause.
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Chocolate Mousse: Conclude the meal with a light and airy chocolate mousse, offering a sweet touch that resonates with the comforting theme. The rich chocolate flavor creates a perfect, indulgent ending to your hearty dinner.
Expert Tips for Potatoes au Gratin
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Slice Evenly: Use a mandoline for uniform potato slices; this ensures even cooking and prevents some pieces from being underdone while others are overcooked.
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Rest Time Matters: Allow your Potatoes au Gratin to rest after baking. This helps improve flavor blending and makes serving easier, as it won’t fall apart when you dish it out.
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Make Ahead: Prepare the dish in advance and refrigerate it. Just remember to add an extra 5-10 minutes to your baking time if it’s chilled, ensuring perfect creaminess.
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Cheese Variety: Feel free to mix cheeses as you wish! While Cheddar and Fontina are classic, experimenting with flavors like Gruyère or Gouda can elevate your Potatoes au Gratin to new heights.
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Season to Taste: Don’t hesitate to taste and adjust your seasoning throughout the cooking process. This key step will help prevent blandness, ensuring your dish is bursting with flavor.

Copycat Ruth’s Chris Potatoes au Gratin Recipe FAQs
How do I select the right potatoes for Potatoes au Gratin?
Choosing the right potatoes is essential for a creamy texture. I recommend using Russet potatoes because they have a high starch content, which contributes to a fluffier interior. If you prefer a buttery flavor, Yukon Gold potatoes can be an excellent alternative. Look for potatoes that are firm to the touch and free of dark spots or blemishes.
What is the best way to store leftover Potatoes au Gratin?
Absolutely! You can store leftover Potatoes au Gratin in an airtight container in the fridge for up to 3 days. Make sure they have cooled completely before refrigerating to help maintain their creamy texture. When you’re ready to enjoy them again, simply reheat in the oven at 350°F (175°C) until warmed through.
Can I freeze Potatoes au Gratin?
Yes, you can! To freeze, assemble the Potatoes au Gratin (without baking) and wrap tightly in plastic wrap and then foil to prevent freezer burn. They can be frozen for up to 2 months. When you’re ready to bake, cook from frozen at 375°F (190°C) for 45-60 minutes, checking for the cheese to melt and bubble. If thawed, simply bake at 350°F (175°C) for about 20-30 minutes until hot.
What should I do if my Potatoes au Gratin is too watery?
If you find your Potatoes au Gratin comes out watery, don’t fret! This can happen if the potatoes release too much moisture. To avoid this, ensure to sauté the potatoes for a bit longer in the creamy sauce, or consider using less chicken stock. If it does happen, you can mix in some additional shredded cheese or cornstarch to thicken it up before baking.
Are there any dietary considerations for Potatoes au Gratin? Can I make it dairy-free?
Certainly! For those with dairy restrictions, you can substitute the heavy cream with a non-dairy alternative like cashew cream or coconut milk. You can also use a plant-based cheese for the topping. Just be sure to check the labels on these products to ensure that they align with any dietary needs. Always taste and adjust the seasonings as needed!
Can I prepare Potatoes au Gratin ahead of time?
Yes, preparing them in advance is a wonderful idea! You can assemble the entire dish up to 24 hours ahead of time. Just cover it tightly with plastic wrap and refrigerate. When ready to bake, remove the wrap and pop it in the oven! You might need to add an additional 5-10 minutes to the baking time, ensuring that the cheese gets all bubbly and golden.

Creamy Potatoes au Gratin for Ultimate Comfort Food Bliss
Ingredients
Equipment
Method
- Preheat your oven to 425°F (220°C).
- Melt butter in a medium skillet over medium heat. Add chopped onion and sauté until soft and translucent, about 3-4 minutes. Stir in minced garlic, salt, and black pepper for an additional minute.
- Pour chicken stock and heavy cream into the skillet, stir, and add thinly sliced russet potatoes, mixing gently.
- Cover the skillet and let the potato mixture simmer over medium-low heat for about 15-20 minutes.
- Grease an 8x8-inch baking dish with butter or oil.
- Transfer the hot potato mixture into the greased baking dish, spreading it evenly.
- Sprinkle shredded cheese over the potatoes, covering the entire surface.
- Bake for 10-15 minutes until the cheese is bubbly and golden brown.
- Allow to rest for about 5 minutes and garnish with chopped parsley before serving.

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