Celeriac Rösti with Harissa Yogurt

Featured in: Rustic Family Dinners

These crispy celeriac rösti combine grated celeriac and potato, pan-fried until golden and served with a zesty harissa yogurt sauce and perfectly fried eggs. Ready in just 45 minutes, this vegetarian dish offers a modern twist on traditional hash browns with bold Middle Eastern flavors. The creamy, spicy yogurt balances the crispy texture beautifully, making it ideal for weekend brunch or a satisfying light dinner.

Updated on Fri, 30 Jan 2026 15:02:00 GMT
Golden-brown celeriac rösti topped with a fried egg, drizzled with vibrant red harissa yogurt and fresh parsley. Save
Golden-brown celeriac rösti topped with a fried egg, drizzled with vibrant red harissa yogurt and fresh parsley. | hazeldish.com

The first celeriac I ever bought sat in my fridge for a week because I had no idea what to do with it. It looked like something unearthed from a medieval garden, knobby and strange. Then a friend mentioned rösti, and suddenly that odd root made sense. I grated it alongside a potato, fried it until the edges crisped, and watched it transform into something I actually craved again the next morning.

I made these for my sister one rainy Saturday when she showed up unannounced. She stood in the kitchen, coffee in hand, watching me flip the rösti until they were golden and crackling. When I slid the fried egg on top and drizzled the harissa yogurt, she looked at me like Id just pulled off something impressive. We ate them standing at the counter, yolks breaking over the crispy edges, and she asked for the recipe before she even finished her plate.

Ingredients

  • Celeriac: This knobby root brings a mild, celery-like flavor that crisps beautifully when fried, adding depth without overpowering the dish.
  • Potatoes: They bind the rösti together and add familiar starchiness, balancing the celeriac with a comforting texture.
  • Onion: Finely grated onion melts into the mixture, lending sweetness and a hint of sharpness that blooms as it fries.
  • Fresh parsley: Chopped parsley brightens the whole thing with a grassy freshness that cuts through the oil.
  • Plain flour: Just enough to hold the shreds together without making the rösti heavy or doughy.
  • Egg: Acts as the glue, ensuring each rösti stays intact when you flip it in the pan.
  • Olive oil: Frying in olive oil gives a crisp crust with a slightly fruity finish that butter alone cant achieve.
  • Greek yogurt: Thick and tangy, it cools down the harissa and adds creamy richness to each bite.
  • Harissa paste: This North African chili paste brings smoky heat and complexity, turning plain yogurt into something bold.
  • Lemon juice: A squeeze of lemon wakes up the yogurt and balances the fat from the fried egg.
  • Eggs for frying: The runny yolk is the sauce, pooling into the crispy edges and tying everything together.
  • Butter or olive oil for eggs: Butter makes the whites lacy and golden, while olive oil keeps things lighter.

Instructions

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Squeeze out the moisture:
Place grated celeriac and potato in a clean towel and twist hard until no more liquid drips out. This step is what makes the rösti crisp instead of soggy.
Mix the rösti base:
In a large bowl, combine celeriac, potato, onion, parsley, flour, egg, salt, and pepper, stirring until everything clings together. The mixture should feel slightly wet but hold its shape when pressed.
Fry the rösti:
Heat olive oil in a non-stick pan over medium heat, then scoop heaped tablespoons of mixture into the pan, flattening each gently. Fry for 4 to 5 minutes per side until golden and crisp, working in batches and adding more oil as needed.
Keep them warm:
Transfer finished rösti to a paper towel-lined plate and keep warm in a low oven while you fry the rest. This way, everyone eats hot, crispy rounds at the same time.
Make the harissa yogurt:
In a small bowl, mix Greek yogurt, harissa paste, lemon juice, and a pinch of salt. Taste and adjust the heat or tang to your liking.
Fry the eggs:
Heat butter or oil in a clean pan over medium heat, crack in the eggs, and fry until the whites are set but the yolks are still runny. Season with salt and pepper.
Assemble and serve:
Place rösti on plates, dollop harissa yogurt on top, and crown each with a fried egg. Garnish with extra parsley and lemon wedges.
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Prepare wholesome dog meals by mixing with warm water for easy serving and homemade-style feeding.
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Crispy celeriac and potato rösti served with a dollop of spicy harissa yogurt and a sunny-side-up egg. Save
Crispy celeriac and potato rösti served with a dollop of spicy harissa yogurt and a sunny-side-up egg. | hazeldish.com

There was a morning when I made these for myself after a long week, no guests, no pressure. I stood at the stove, flipping each rösti with care, and realized how much I enjoyed the rhythm of it. The sizzle, the smell of onion browning, the way the yolk broke and pooled into the yogurt. It wasnt just breakfast, it was a small act of looking after myself that felt surprisingly satisfying.

Storing and Reheating

Leftover rösti keep in the fridge for up to two days, but they lose their crispness once cooled. To bring them back to life, reheat them in a hot oven or frying pan with a little oil, not the microwave. The harissa yogurt stays fresh in a sealed container for three days and actually tastes better the next day once the flavors meld. You can make the rösti mixture ahead and store it in the fridge overnight, just give it a quick stir before frying.

Swaps and Variations

Sweet potatoes work beautifully in place of regular potatoes if you want a hint of sweetness and a more vibrant color. For a vegan version, skip the egg in the mixture and use a flax egg, then top with avocado instead of fried eggs. If harissa feels too spicy, try mixing the yogurt with smoked paprika and a touch of honey for a milder kick. I once added grated carrot to the rösti mix when I had some to use up, and it added a subtle sweetness that surprised me in the best way.

Serving Suggestions

These rösti make a complete meal on their own, but theyre even better alongside a crisp green salad dressed with lemon and olive oil. If youre serving them for brunch, set out extra harissa yogurt, some sliced avocado, and maybe a handful of toasted seeds for crunch. They also pair well with smoked salmon or sautéed greens if you want to turn them into something more substantial.

  • Add a handful of crumbled feta to the yogurt for extra tang and creaminess.
  • Serve with a side of sautéed spinach or kale for a nutritious boost.
  • Drizzle a little extra virgin olive oil over the top just before serving for richness.
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A close-up of perfectly fried eggs resting on crunchy celeriac rösti with a drizzle of lemony harissa yogurt. Save
A close-up of perfectly fried eggs resting on crunchy celeriac rösti with a drizzle of lemony harissa yogurt. | hazeldish.com

This dish has become my go-to when I want something that feels special without spending hours in the kitchen. Its the kind of recipe that makes you look forward to breakfast, and honestly, thats worth every bit of grating and flipping.

Recipe Help & Answers

Can I prepare the rösti mixture in advance?

Yes, you can prepare the mixture up to 2 hours ahead. Keep it covered in the refrigerator and squeeze out any excess liquid again before frying to ensure maximum crispiness.

How do I prevent the rösti from falling apart?

The key is removing as much moisture as possible from the grated vegetables and ensuring the egg and flour bind the mixture well. Avoid flipping too early—let them cook undisturbed for 4-5 minutes per side.

What can I substitute for celeriac?

You can use all potatoes, sweet potatoes, or parsnips instead of celeriac. Each will give a slightly different flavor, but the cooking method remains the same.

Is there a dairy-free alternative to Greek yogurt?

Yes, coconut yogurt or cashew-based yogurt work well as dairy-free alternatives. Choose an unsweetened, thick variety for the best texture and flavor balance with the harissa.

Can I bake the rösti instead of frying?

Yes, brush both sides with oil and bake at 200°C (400°F) for 15-20 minutes per side on a parchment-lined baking sheet. They won't be quite as crispy but will be lower in fat.

How spicy is harissa paste?

Harissa has a moderate heat level, but intensity varies by brand. Start with 1 tablespoon mixed into the yogurt and adjust to your taste preference. You can always add more for extra kick.

Celeriac Rösti with Harissa Yogurt

Crispy celeriac rösti with spicy harissa yogurt and fried eggs—perfect for brunch or a light vegetarian supper.

Prep Time
20 min
Time to Cook
25 min
Overall Time
45 min
Created by Isabel Grant


Skill Level Medium

Inspired By Modern European

Makes 4 Number of servings

Dietary Details Vegetarian-Friendly

What You Need

Rösti

01 1.1 lb celeriac, peeled and coarsely grated
02 7 oz potatoes, peeled and coarsely grated
03 1 small onion, finely grated
04 2 tbsp fresh parsley, finely chopped
05 2 tbsp all-purpose flour
06 1 large egg
07 1 tsp salt
08 ½ tsp black pepper
09 3 tbsp olive oil for frying

Harissa Yogurt

01 7 oz Greek yogurt
02 1½ tbsp harissa paste
03 1 tsp fresh lemon juice
04 Salt to taste

Fried Eggs

01 4 large eggs
02 1 tbsp butter or olive oil
03 Salt and pepper to taste

To Serve

01 Fresh parsley, chopped
02 Lemon wedges

How to Make It

Step 01

Prepare and drain vegetables: Place grated celeriac and potatoes in a clean kitchen towel and squeeze firmly to remove excess moisture.

Step 02

Mix rösti batter: In a large bowl, combine drained celeriac, potatoes, grated onion, chopped parsley, flour, egg, salt, and pepper. Mix thoroughly until well incorporated.

Step 03

Cook rösti patties: Heat 1½ tbsp olive oil in a large non-stick frying pan over medium heat. Scoop a heaped tablespoon of mixture per rösti, gently flatten in the pan, and fry in batches for 4-5 minutes per side until golden and crisp. Add additional oil as needed between batches.

Step 04

Finish rösti: Transfer cooked rösti to a paper towel-lined plate and keep warm in a low oven until all patties are completed.

Step 05

Prepare harissa yogurt: In a small bowl, combine Greek yogurt, harissa paste, lemon juice, and salt. Whisk until smooth and adjust seasoning to preference.

Step 06

Fry eggs: In a clean pan, heat butter or oil over medium heat. Crack in eggs and fry to desired doneness. Season with salt and pepper.

Step 07

Plate and serve: Top warm rösti with a generous dollop of harissa yogurt and a fried egg. Garnish with fresh parsley and serve with lemon wedges.

Tools You’ll Need

  • Box grater or food processor
  • Large non-stick frying pan
  • Mixing bowls
  • Spatula
  • Paper towels
  • Kitchen towel
  • Small mixing bowl

Allergy Details

Review each ingredient for allergens. Always reach out to a healthcare professional for help if you’re unsure.
  • Contains eggs and dairy products including Greek yogurt
  • Contains gluten if using all-purpose flour; use certified gluten-free flour alternative for gluten-free preparation
  • Harissa paste may contain potential allergens including garlic and various spices

Per-Serving Nutrition

Nutritional data is for general reference only. It shouldn't replace advice from your doctor.
  • Calorie Count: 320
  • Fats: 17 g
  • Carbohydrates: 29 g
  • Proteins: 13 g