Potatoes Romanoff is a cozy, cheesy dish that features tender potatoes baked with cream and topped with a crunchy layer of cheese. It’s rich, creamy, and oh so comforting!
Every bite feels like a warm hug! I love serving it as a yummy side at family dinners. Plus, it’s so easy to make; you just mix and let the oven work its magic! 🥔✨
Key Ingredients & Substitutions
Russet Potatoes: These are the best choice because they are starchy and become fluffy when baked. If you prefer a waxy texture, Yukon Gold potatoes are a great alternative. They hold up well but won’t be quite as fluffy.
Sour Cream: Adds creaminess and a slight tang. If you’re looking for a lighter option, Greek yogurt works nicely as a low-fat substitute without losing flavor. You can even use a dairy-free version if needed.
Mayonnaise: This ingredient gives a rich creaminess. If you’re avoiding mayonnaise, you could replace it with more sour cream or a combination of sour cream and a little mustard for added flavor.
Cheeses: Sharp cheddar gives a nice bite, while Swiss or Gruyere adds a nice depth. Feel free to mix it up! Monterey Jack, Colby, or even a spicy pepper jack can be fun alternatives.
Onion: The onion adds sweetness and flavor. If you’re not a fan, you could omit it or use a shallot for a milder taste.
How Do I Slice Potatoes Thinly and Evenly?
Slicing potatoes evenly is key for a consistent bake. To achieve this, follow these tips:
- Use a Mandoline: If you have one, a mandoline slicer makes it easy to get perfectly thin slices.
- A Sharp Knife: If using a knife, take your time. Cut off a small slice along one side of each potato to create a flat base, then slice downwards.
- Consistency Matters: Aim for slices about 1/8 inch thick. This ensures they cook evenly in the oven.
Don’t forget to place the sliced potatoes in water to prevent browning while you work!
What’s the Best Way to Layer the Dish?
Layering is crucial for texture in Potatoes Romanoff. Here’s how to do it:
- Start with Potatoes: Place half the potato mixture in the dish first to create a sturdy base.
- Cheese Layer: Sprinkle half the cheese on top, which will melt and bind the potatoes.
- Repeat: Add the remaining potato mixture and top with the final cheese layer. This creates a delicious, cheesy crust on the top.
This method results in a creamy interior and a crispy top—just how it should be!

Delicious Potatoes Romanoff Recipe
Ingredients You’ll Need:
For the Dish:
- 2 pounds russet potatoes, peeled and thinly sliced
- 1 cup sour cream
- 1 cup mayonnaise
- 1 cup shredded sharp cheddar cheese
- 1 cup shredded Swiss or Gruyere cheese
- 1 medium onion, finely chopped
- 1 tbsp fresh parsley, chopped (plus extra for garnish)
- 1 tbsp fresh thyme leaves (optional)
- 1 tsp salt
- 1/2 tsp black pepper
- 1 tbsp butter (for greasing the baking dish)
How Much Time Will You Need?
This recipe takes about 15 minutes for preparation, plus baking time of approximately 1 hour. Altogether, you’re looking at about 1 hour and 15 minutes to create this delightful dish. You’ll be rewarded with creamy, luscious potatoes that serve well as a side dish!
Step-by-Step Instructions:
1. Preheat and Prepare:
Start by preheating your oven to 350°F (175°C). While the oven warms up, generously grease your medium-sized baking dish with butter to prevent sticking.
2. Slice the Potatoes:
Carefully peel the russet potatoes and slice them into thin rounds, about 1/8 inch thick. To keep the slices from browning, place them in a bowl filled with cold water. After slicing, drain the water and pat the potato slices dry with a clean kitchen towel.
3. Mix the Creamy Filling:
In a large mixing bowl, combine the sour cream, mayonnaise, finely chopped onion, chopped parsley, thyme (if you’re using it), along with the salt and black pepper. Give it a good stir until everything is well mixed and creamy.
4. Combine Potatoes and Mixture:
Take the sliced potatoes and add them to the bowl with the creamy mixture. Toss everything together gently, ensuring each potato slice is evenly coated with the delicious mixture.
5. Layer in the Baking Dish:
Pour half of the potato mixture into the greased baking dish, spreading it out evenly. Then, sprinkle half of both types of cheese over this layer to bring that cheesy goodness!
6. Build More Layers:
Next, layer the remaining potato mixture on top, spreading it evenly. Finish off by sprinkling the remaining cheese over the top, making sure it’s well distributed so every bite has melted cheese.
7. Bake:
Cover the dish with aluminum foil and place it in the oven. Bake for 45 minutes. After that, carefully remove the foil and bake for an additional 20-25 minutes, or until the potatoes are tender and the top is golden brown and bubbly.
8. Serve:
Once done, remove the dish from the oven and let it rest for about 5-10 minutes. This allows the flavors to settle. Before serving, feel free to garnish with extra chopped parsley or thyme for a fresh touch.
Now you’re all set to enjoy your creamy, cheesy Potatoes Romanoff—perfect for any occasion! Enjoy every delicious bite!
Can I Use Different Types of Potatoes?
Yes! While russet potatoes are ideal for their fluffiness, you can use Yukon Gold for a creamier texture or red potatoes for a firmer bite. Just keep in mind that cooking times may vary slightly.
What Can I Substitute for Mayonnaise?
If you want to lighten the dish or avoid mayonnaise, you can replace it with an equal amount of sour cream or use Greek yogurt for a tangy twist. Both substitutions will maintain the creaminess of the dish.
Can I Make This Dish Ahead of Time?
Absolutely! You can assemble the potatoes and creamy mixture a day ahead. Just cover and refrigerate until you’re ready to bake. Add an additional 10-15 minutes to the baking time if baking straight from the fridge.
How Should I Store Leftovers?
Store any leftovers in an airtight container in the fridge for up to 3 days. To reheat, place in the oven at 350°F (175°C) until warmed through, or microwave in short intervals, stirring occasionally.
