
Crispy Potato Rösti with Spinach Recipe

By Emma Kitchen
Certified Culinary Professional
Grate the potatoes. Actually—peel them first. Yukon Gold. Not russets. There’s a difference. Squeeze out everything. The towel will soak through. That’s the point. You need them dry or the whole thing steams instead of crisps.
Why You’ll Love This Rösti
Takes 50 minutes total—that’s prep and cook. Makes one cake that feeds 4 as a side. Crispy on the bottom. Soft inside. Works cold the next day, maybe better.
The spinach keeps it from feeling heavy. Just enough to notice. One skillet. That’s it.
Vegetarian thing that actually tastes good. Not trying to replace meat—just exists on its own.
Flips once. Sounds complicated. Isn’t.
What You Need for a Crispy Potato Cake
Yukon Gold. 1.1 kilos. Peel them. The yellow ones, not the red.
Spinach. 200 grams, chopped. Fresh. Frozen works but squeeze out the water first or you’ll have a soggy situation.
Unsalted butter. 60 grams melted. Separate it in your head—45 grams goes in the mix, 15 stays for the pan. The ratio matters.
One onion, finely chopped. Regular onion. Not red. The regular ones mellow out when they cook.
Salt. Pepper. That’s it.
The pan needs to be 25 centimeters across. Non-stick. Use a plate that’s bigger than the pan for the flip.
How to Make Rösti
Grate the potatoes on the box grater—the side with medium holes. Place half of it on a clean kitchen towel. Squeeze hard. Your hands will get tired. Keep going. You’re getting out starch water. That’s where all the sogginess lives. You should end up with about 1.5 liters of grated potato that’s actually damp, not wet.
Do the other half the same way. Don’t shortcut this part. This is the whole thing.
In a bowl, mix the squeezed potatoes with the spinach, onion, 45 milliliters of the melted butter, salt, and pepper. Mix until it holds together when you squeeze it. It should feel like—I don’t know, like wet sand that sticks.
How to Get Crispy Potato Pancakes
Heat the skillet over medium-high. Pour in 30 milliliters of butter. Let it get hot. Actually hot. Not just warm. You’ll see it move in the pan.
Spread the potato mixture in there. Press it down gently with the back of a spoon. Flatten it so it’s maybe an inch thick. Cover with a lid. Cook for 7 to 9 minutes. The edges will start turning the color of dark honey. Smell it. When it smells nutty, check the bottom.
Lift the lid. Use a spatula on the edges to see if it’s moving. It should be golden and crispy there.
Take it off heat. Get your plate. The big one. Place it right over the pan. Flip the whole thing. The rösti should land on the plate. If it doesn’t, it wasn’t ready. Put it back.
Add the remaining 15 milliliters of butter to the empty skillet. Get it hot again. Slide the rösti back in. Raw side down now.
Cook for another 8 to 12 minutes until the bottom is also golden and snaps when you push it. Pierce the middle with a fork. It should give.
Transfer to your serving plate. Cut it into wedges like a pie.
Rösti Tips and Common Mistakes
Don’t skip the squeezing. This is where people fail. Soggy rösti is just mashed potatoes in a pan.
Medium-high heat. Not high. High makes the outside burn before the inside cooks.
The flip is scary. It’s fine. Use a plate bigger than your pan. Use a lid or another plate if you need to. It will work.
Yukon Gold is important. They have less starch. Hold together. Russets fall apart. Reds are waxy—crispy on the outside, weird inside.
The onion has to be fine. Small pieces cook through. Big chunks stay crunchy in a bad way.
Spinach—don’t use too much. 200 grams looks like nothing when it’s raw. It shrinks. It’s enough.
Salt it in the raw mixture. Don’t wait until after cooking. The salt can’t reach the potatoes if you add it at the end.
Check doneness by piercing with a fork. It should go in easy. If it’s stuck, cook longer.

Crispy Potato Rösti with Spinach Recipe
- For the rösti
- 1.1 kg of Yukon Gold potatoes, peeled
- 200 g of fresh spinach, chopped
- 60 g of unsalted butter, melted
- 3 ml of salt
- Black pepper
- 1 onion, finely chopped
- 1 Grate the Yukon Gold potatoes. Place one-half on a clean towel. Squeeze out excess moisture. You should get about 1.5 liters of grated potatoes.
- 2 In a bowl, combine the drained potatoes, chopped spinach, onion, 45 ml of melted butter, and salt. Add black pepper to taste. Mix well.
- 3 Heat a non-stick skillet about 25 cm in diameter over medium-high heat. Pour in 30 ml of melted butter. Spread the potato mixture evenly in the pan, pressing gently to flatten.
- 4 Cover and cook for 7 to 9 minutes until the edges start to turn golden.
- 5 Remove from heat. Place a large plate over the skillet and flip the rösti onto the plate. Add the remaining butter to the skillet. Gently slide the rösti back into the pan.
- 6 Cook for another 8 to 12 minutes until the bottom is crispy and golden. Check for tenderness by piercing with a fork.
- 7 Transfer the rösti onto a serving platter. Cut into wedges. Serve warm.
Frequently Asked Questions About Potato Rosti Dishes
Can you make rosti Swiss style—like the traditional recipe? This is already pretty close to the classic. The spinach and onion are just additions. You want the potatoes to be the main thing. Use the same technique and it works.
How do you make crispy potato cakes without them falling apart? Squeeze them dry. That’s not a suggestion. The moisture is what makes them fall. Also—don’t flip until the bottom is actually crispy. That gives the whole thing structure.
Can you use a thermomix or food processor to grate them? Yeah. Set it to medium speed. Don’t turn them into pulp. You want strips, not mush.
What if you don’t have Yukon Gold potatoes? Waxy potatoes work. Fingerlings work. Russets are too starchy—they get mealy. Red potatoes are fine but they’re waxier, so maybe slightly less crispy. Not the end of the world.
Can you add bacon to rosti? Cook it first. Chop it. Mix it in with everything else. Works fine. Changes the flavor obviously—it’s not a potato rosti anymore, it’s a bacon rosti. But it works.
How do you store it? Wrap it in foil. Fridge for 4 days. Reheat in a skillet over medium heat until the bottom gets crispy again. It’s better the second day, actually.
Is there a best potato rosti recipe temperature? Medium-high. Not medium. Not high. Medium-high gets you golden and crispy on the outside while the inside cooks through. You want 8 to 12 minutes on the second side. If it’s taking longer, turn the heat up slightly next time.



















