There’s something undeniably comforting about a sweet potato casserole. Whether you’re gathering around the dinner table with family or enjoying a quiet night in, this dish evokes warmth and nostalgia. The Ruth Chris Copycat Sweet Potato Casserole is more than just a side; it’s pure comfort food that brings people together. I’ve always found that sweet potato casseroles hold a special place in my heart, especially during the holidays when they can elevate any meal.
This particular recipe shines thanks to its blend of ingredients. You’ll be using four large sweet potatoes, ensuring a rich base that packs a nutrient punch. To enhance their natural sweetness, we incorporate 1/2 cup of brown sugar. The addition of 1/3 cup of melted butter brings a luscious creaminess, while 1/2 cup of milk adds moisture. Two large eggs help bind the mix, and a hint of vanilla extract, 1/2 teaspoon of cinnamon, and 1/4 teaspoon of salt balance the flavor profile beautifully. Finally, a topping of 1 cup of mini marshmallows adds a delightful sweetness, culminating in a dish that feels indulgent yet familiar.
Making this sweet potato casserole isn’t just rewarding; it’s also incredibly straightforward. Start by preheating your oven to 350°F (175°C). While it warms up, peel and dice those sweet potatoes and boil them until tender, which takes about 15 to 20 minutes. Once they’re ready, drain and mash them in a bowl. Next, combine the mashed sweet potatoes with the brown sugar, melted butter, milk, eggs, vanilla extract, cinnamon, and salt. This mixture gets poured into a greased casserole dish and spread evenly before baking for 25 minutes. Afterward, sprinkle the mini marshmallows on top and bake them until they are golden brown, which takes an additional 10 to 15 minutes. Let it cool slightly before serving, and you’re ready to indulge!
Picture this dish gracing your table on a chilly evening or being the star attraction at your next potluck. The unique blend of flavors and textures makes it an all-around favorite, perfect for family gatherings, holiday celebrations, or even a simple weeknight meal.

Why You’ll Love This Ruth Chris Copycat Sweet Potato Casserole Recipe
- Quick: This recipe comes together in a snap, perfect for busy evenings or last-minute gatherings.
- Simple Ingredients: You likely have most of these ingredients at home, making it easy to whip up without a trip to the store.
- Comfort Food: The rich flavors evoke feelings of warmth and nostalgia, making it a great addition to any meal.
- Crowd-Pleaser: It appeals to both sweet and savory palates, ensuring everyone leaves the table satisfied.
- Versatile: Great as a side dish during holidays, family dinners, or even as a standalone treat.
Sweet Potato Tips
When selecting sweet potatoes, go for those that are firm and smooth. Avoid any with soft spots or wrinkles, as these can indicate spoilage. For the best creamy texture, try to get larger sweet potatoes – they tend to be sweeter than smaller ones. When preparing, ensure your sweet potatoes are cut into even-sized pieces for uniform cooking; this way, they will all become tender at the same time, allowing for a perfect mash.
Options for Substitutions
- For Brown Sugar: Use coconut sugar or maple syrup for a natural sweetener.
- For Butter: Substitute with coconut oil or vegan butter for a dairy-free option.
- For Milk: Almond milk or oat milk work well if you’re looking for a non-dairy alternative.
- For Eggs: You can replace each egg with 1/4 cup of unsweetened applesauce for a vegan version.
- For Cinnamon: While cinnamon is traditional, nutmeg can add an interesting twist.
- For Mini Marshmallows: Try using crushed graham crackers or toasted pecans for a crunchier topping.
Watch Out for These Mistakes
First, take care not to overcook the sweet potatoes. If they become too soft, they can yield a watery casserole, resulting in a less desirable texture. Second, pay attention to seasoning. Adding too much salt can overpower the sweetness of the dish, while too little can leave it bland. Third, when mixing ingredients, don’t rush. Ensure that the sweet potato mixture is smooth and thoroughly combined to avoid lumps. Lastly, remember to cool the casserole slightly before serving. This will allow the marshmallows to set a bit, making it easier to slice and serve.

What to Serve With Ruth Chris Copycat Sweet Potato Casserole Recipe?
This sweet potato casserole pairs beautifully with savory dishes. Consider serving it alongside roasted chicken, honey-glazed ham, or even sautéed green beans. For a heartier meal, it complements well with a grilled steak or a savory pot roast. Each of these options pairs remarkably with the sweetness of the casserole, creating a balanced and delightful dinner experience.
Storage Instructions
Store: Keep leftovers in an airtight container in the fridge for up to 4 days.
Freeze: If you want to prepare in advance, this casserole freezes well for up to 2 months.
Reheat: For stovetop reheating, place the casserole in a saucepan over low heat, stirring occasionally until heated through. In the microwave, cover with a microwave-safe lid and heat in one-minute increments, stirring between each, until warmed.
Recipe Info
Preparation Time: 15 minutes
Cooking Time: 35-45 minutes
Total Time: 50-60 minutes
Level of Difficulty: Easy
Servings: Approximately 8 servings
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
- Calories: 1,440 – 1,680
- Protein: 16g – 20g
- Fat: 60g – 70g
- Carbohydrates: 220g – 250g
Ingredients
- 4 large sweet potatoes
- 1/2 cup brown sugar
- 1/3 cup butter, melted
- 1/2 cup milk
- 2 large eggs
- 1 teaspoon vanilla extract
- 1/2 teaspoon cinnamon
- 1/4 teaspoon salt
- 1 cup mini marshmallows (for topping)

Step-by-Step Instructions
Step 1: Preheat Oven and Prep Ingredients
Begin by preheating your oven to 350°F (175°C). While the oven is warming, peel the sweet potatoes and cut them into even pieces for boiling.
Step 2: Boil Sweet Potatoes
Place the diced sweet potatoes in a large pot of water and bring to a boil. Cook until the potatoes are tender, which should take about 15 to 20 minutes. Once cooked, drain and transfer them to a bowl for mashing.
Step 3: Mash and Mix
Using a masher or a fork, mash the sweet potatoes until they are smooth. In another mixing bowl, combine the mashed sweet potatoes with brown sugar, melted butter, milk, eggs, vanilla extract, cinnamon, and salt. Mix until everything is well combined and creamy.
Step 4: Prepare Casserole Dish
Take a greased casserole dish and pour the sweet potato mixture into it. Spread it out evenly to ensure even baking.
Step 5: First Bake
Place the casserole dish in the preheated oven and bake it for about 25 minutes. This initial baking allows the mixture to set nicely.
Step 6: Add Marshmallows and Bake Again
After 25 minutes, remove the casserole from the oven and sprinkle mini marshmallows evenly on top. Return the dish to the oven and bake for an additional 10 to 15 minutes, until the marshmallows turn golden brown.
Step 7: Cool and Serve
After baking, take the casserole out of the oven and let it cool slightly before serving. This will help the marshmallows firm up a bit, making it easier to scoop.
In conclusion, this Ruth Chris Copycat Sweet Potato Casserole Recipe is not just a side dish; it’s a heartwarming addition to any gathering or meal. Its simplicity, combined with the rich flavors makes it a must-try. I invite you to share your thoughts after trying this recipe, or feel free to explore other delightful dishes on the blog. Your feedback is always appreciated. Happy cooking!