Introduction
Rösti, a beloved Swiss dish, is renowned for its crispy outer layer and tender, flavorful inside. This versatile potato pancake can be served as a main course or a side dish, making it a fantastic addition to any meal. The secret to achieving that perfect crispiness lies in the selection and preparation of the ingredients. Below, we detail the necessary components for creating this delicious dish.
Detailed Ingredients with Measures
1 kg/2 lb potatoes (skin on weight) – Aus: Sebago (dirt brushed), US: Yukon Gold, Russet, UK: Maris Piper, King Edwards
3/4 tsp salt, kosher/cooking salt (or 1/2 tsp table salt)
1/2 tsp finely ground black pepper
15g/1 tbsp clarified butter/ghee or normal butter, melted
Cooking:
60g/4 tbsp clarified butter/ghee, separated (sub half butter, half vegetable oil)
Prep Time
15 minutes
Cook Time, Total Time, Yield
Cook Time: 24 minutes
Total Time: 39 minutes
Yield: 4 to 6 servings
Instructions
Grate and squeeze:
Peel and grate the potatoes using a box grater, aiming for long strands. Take handfuls of grated potato and squeeze out any excess liquid, placing it in a bowl. This step is essential for achieving a crispy texture. Add the melted butter, salt, and pepper, then toss to combine. Don’t worry if the potatoes turn brown; they will return to a lighter color when cooked.
Cook:
Melt half of the clarified butter in a non-stick pan over medium-low heat. It’s best to use a shallow non-stick pan for easy removal of the rösti. Place the potato mixture in the pan without packing it down. Use a rubber spatula to smooth the edges and gently pat down for an even surface.
For the first side, cook for about 12 minutes until the underside becomes golden and crispy. If it isn’t browning after 8 minutes, increase the heat. To flip the rösti, cover the pan with a round wooden board with a handle. Hold the board’s handle and flip the rösti with confidence.
For the second side, melt the remaining clarified butter in the pan, then slide the rösti back in and cook for an additional 12 minutes until it’s golden and crispy, and a knife goes in easily.
Slide the rösti onto a cutting board, cut it into 4 or 6 wedges, and serve immediately.
Small Rösti
For smaller portions, use 25g/1.5 tbsp clarified butter for each batch in a non-stick pan. Form the potato mixture into rounds about 8cm/3 inches wide and 1.5-2cm/2/3 inches thick. Cook each round for 5 minutes until deep golden, flip, and cook for another 5 minutes until well done.
To Hold / Keep Warm
Transfer cooked rösti to a rack set over a tray in a 120°C/250°F oven until you’re ready to serve.
Recipe Notes
1. Potatoes – Both waxy and starchy potatoes work well for rösti. Waxy potatoes tend to hold their shape better, while starchy potatoes create a fluffier interior. A balanced choice, like Sebago, Yukon Gold, or King Edwards, provides the best results.
2. Clarified butter/ghee – This ingredient enhances flavor and crispiness due to its higher smoke point and lack of milk solids. It can be purchased or made at home easily.
3. Flipping vehicle – Using a wooden board with a handle provides better control when flipping the rösti.
4. Reheating – For small rösti, reheat in a 200°C/390°F oven for about 7 minutes. Large rösti may take around 10 minutes, but smaller ones tend to retain more crispiness.
Detailed Directions and Instructions
Grate & Squeeze
Peel the potatoes and use a box grater to grate them into long strands if possible. Take handfuls of the grated potato and squeeze out the excess liquid, then place the drained potato in a bowl. This step is crucial for achieving a crispy texture during cooking. It is normal for the grated potatoes to turn brown; they are still safe to eat and will return to a white color when cooked. Add the melted butter, salt, and pepper to the bowl, and gently toss to combine.
Cook
Melt half of the clarified butter in a non-stick pan or skillet, approximately 26cm / 10.5″ in diameter, over medium-low heat. A shallow non-stick pan with sloped sides is recommended for easier removal of the rosti.
Place the grated potato mixture into the pan without packing it down. Use a rubber spatula to tidy the edges and lightly pat down to create an even surface. Cook the first side for about 12 minutes, or until the underside is very golden and crispy. You can lift the edge with the rubber spatula to check the color. If the bottom isn’t turning golden after 8 minutes, increase the heat.
Flip
Cover the pan with a round wooden board that has a handle (or a similar item). Firmly hold the handle of the board and flip the rosti quickly and confidently.
Cook Second Side
Melt the remaining clarified butter in the pan, then gently slide the flipped rosti back into the pan. Cook for another 12 minutes until the second side is also golden and crispy, and a knife should meet no resistance when inserted into the center.
Once done, carefully slide the rosti onto a cutting board, cut it into 4 or 6 wedges, and serve immediately.
Small Rosti
For smaller portions, use 25g / 1 1/2 tbsp of clarified butter for each batch at medium heat in a non-stick pan. Place the grated potato in rounds in the skillet, aiming for a diameter of around 8cm / 3″ and a thickness of 1.5 – 2cm / 2/3″. Cook for 5 minutes until deeply golden and crispy, then flip and cook for an additional 5 minutes until finished.
To Hold / Keep Warm
If needed, transfer the cooked rosti to a rack set over a tray in an oven preheated to 120°C / 250°F to keep warm until it’s time to serve.
Notes
Potatoes
Rosti works well with both waxy and starchy potatoes. Floury potatoes yield a fluffier texture inside, while waxy potatoes remain soft yet retain their strands. Both types will become crispy; waxy potatoes may be a bit crisper.
Clarified Butter / Ghee
Clarified butter (or ghee) has the water and milk solids removed, providing a more intense flavor and higher smoke point, making it ideal for crisping. It can be purchased or easily made at home for a fresher taste.
Substitutions
For mixing into the potato, regular melted butter can be used. When cooking, you can substitute 15g / 1 tbsp of butter paired with 1 tbsp of vegetable oil for each side of the rosti.
Flipping Vehicle
For flipping, using a round wooden board with a handle works best. Hold the handle for better control during the flip. Alternatively, you can use a large flat plate with assistance from another person for added support.
Reheating
To reheat small rosti, place them on a rack over a tray in a 200°C / 390°F oven for about 7 minutes. For larger rosti, use the same method at the same temperature for about 10 minutes. Small rosti tend to retain more crispiness when reheated.

Cook techniques
Grating Potatoes
Peel and grate the potatoes using a box grater, aiming for long strands to enhance texture.
Squeezing Excess Liquid
After grating, take handfuls of potatoes and squeeze out the excess liquid to achieve a crispier end result.
Mixing Ingredients
In a bowl, combine the drained potato strands with melted butter, salt, and black pepper. Toss gently to distribute.
Cooking the Rosti
Melt clarified butter in a non-stick pan over medium-low heat. Add the potato mixture, ensuring it is not packed down, and cook until golden and crispy.
Flipping the Rosti
Once the first side is cooked, cover the pan with a round wooden board with a handle. Flip the rosti quickly and confidently.
Final Cooking
Melt more clarified butter in the pan after flipping and cook until the second side is golden brown and crispy.
Serving
Once cooked, transfer the rosti to a cutting board, cut into wedges, and serve immediately.
FAQ
What type of potatoes work best for rosti?
Waxy or starchy potatoes are ideal, with options like Sebago, Yukon Gold, Maris Piper, or King Edwards.
Can I use regular butter instead of clarified butter?
You can use normal melted butter for mixing into the potatoes, but clarified butter gives a richer flavor and a higher smoke point.
What if I don’t have a round wooden board to flip the rosti?
You can use a large flat plate or rectangle board and have someone help you flip it for better control.
How do I keep the rosti warm after cooking?
Place the rosti on a rack set over a tray in a preheated oven at 120°C/250°F until you’re ready to serve.
How can I reheat leftover rosti?
Reheat small rosti in an oven at 200°C/390°F for about 7 minutes, or large rosti for about 10 minutes using the same method.
Conclusion
The crispy potato rosti is a delightful dish that highlights the natural flavors of potatoes while achieving a satisfying texture contrast. Whether you prefer waxy or starchy potatoes, this recipe can be easily adapted to suit your taste. With the right choice of clarified butter or ghee, your rosti will turn out perfectly golden and crispy, making it an ideal side dish or snack.
Herbed Potato Rosti
Add fresh herbs like rosemary or thyme into the grated potato mixture for an aromatic twist.
Cheese-Stuffed Rosti
Incorporate shredded cheese such as cheddar or mozzarella in the middle of the rosti while cooking for a delicious cheesy center.
Sweet Potato Rosti
Substitute regular potatoes with sweet potatoes for a sweet and colorful variation packed with flavor.
Vegetable Rosti
Mix in grated carrots, zucchini, or onions with the potatoes for added texture and nutrition.
Smoked Paprika Rosti
Enhance the flavor profile by adding smoked paprika to the potato mixture for a smoky depth.
Spicy Rosti
Incorporate finely chopped jalapeños or a sprinkle of chili flakes for a spicy kick to your rosti.
Breakfast Rosti
Top with a poached egg and avocado slices for a hearty breakfast option.
Garlic and Parmesan Rosti
Add minced garlic and grated Parmesan cheese to the mixture for a savory, umami-rich flavor.
Mushroom and Herb Rosti
Sauté mushrooms with garlic and herbs, and mix them into the grated potatoes for an earthy twist.

