Kumpir: Istanbul's Loaded Baked Potato Explained (Recipe)

Key takeaways

• Kumpir starts with a giant baked potato whose flesh is whipped with butter and kaşar cheese inside the skin — that creamy base is the whole point.
• Ortaköy, a waterfront neighborhood on Istanbul's Bosphorus shore, is the district most famous for its row of competing kumpir stalls.
• Classic toppings: fried sucuk or sausage slices, Russian salad, sweet corn, chopped pickles, olives, and a ketchup-mayo zigzag on top.
• You need no special equipment. A hot oven, a fork, and big starchy potatoes do the whole job.
• The pleasure is contrast: steaming, cheese-laced potato against cold, tangy, crunchy toppings.

Stand in Ortaköy square on a Saturday evening and you'll watch the same scene locals have known for decades: a line of glass-fronted stalls, each stacked with steel trays of toppings, and behind every counter someone beating butter and shredded cheese into a potato the size of a small loaf of bread. That's kumpir.

This post covers what kumpir actually is, why one Bosphorus neighborhood became its capital, and how to build a proper one in a US kitchen. It sits in our Turkish recipes guide alongside the other dishes our customers ask about most.

What is kumpir, exactly?

Kumpir is a baked potato taken seriously. Not a russet with a pat of butter and some bacon bits — a potato often close to a pound in weight, baked until the skin crackles, then split and worked from the inside out.

Here's the move that separates kumpir from every other loaded potato: before a single topping goes on, the vendor drops in butter and a fistful of grated kaşar cheese, then whips the hot flesh with a fork until it turns into something between mashed potato and cheese fondue, still sitting in its own skin. The skin becomes the bowl. The flesh becomes the sauce.

The name itself is a border-crosser. It likely traveled to Istanbul from the Balkans — krumpir is still the everyday word for potato in Croatian. The dish as Istanbul knows it, though, is thoroughly Turkish street food: fast, cheap, enormous, and eaten standing up with a view of the water.

Why is Ortaköy famous for kumpir?

Ortaköy is a small square on the European shore of the Bosphorus, pressed between the water, the ornate Ortaköy Mosque, and the first bridge to Asia. Its side streets hold a tight row of kumpir stalls, one after another, each with a counter of twenty-odd topping trays and a vendor calling you over.

Because the stalls sit shoulder to shoulder, they compete on generosity. Toppings pile higher. The cheese-whipping gets more theatrical. Ask any Istanbullu about kumpir and the answer usually isn't a recipe — it's a memory of a specific evening in that square, a foil-wrapped potato in hand, gulls overhead, ferry horns on the water.

That's the version this recipe chases. Kumpir belongs to the same open-air food culture we walk through in our Turkish street food guide — simit carts, midye stands, döner windows — but it's the one you can reproduce at home with the least fuss.

What makes the kumpir base different from a regular baked potato?

Two ingredients and one technique.

The butter is simple enough. The cheese is where you need to pay attention: kaşar is Türkiye's everyday yellow melting cheese, made from cow's or sheep's milk, with a mellow flavor close to a young cheddar and a stretch closer to mozzarella. Whipped into blazing-hot potato, fresh kaşar pulls into strands and disappears into the flesh instead of sitting on top as a broiled cap. You can find it in our Turkish cheese collection; in a pinch, a mix of mild cheddar and low-moisture mozzarella gets you close.

Then the technique: whip, don't just mash. Stall vendors go at the potato hard with a fork for a good half-minute, folding air in while the cheese melts. The finished base should hold a soft peak, like loose mashed potatoes, and stay hot enough to warm the cold toppings that land on it.

What are the classic kumpir toppings?

Every stall arranges its trays a little differently, but a core set shows up everywhere:

• Sucuk or sausage. Thin coins of sucuk — Türkiye's garlicky, paprika-red fermented beef sausage — pan-fried until the edges curl and the fat runs brick-orange. Stalls also use sliced hot dogs; sucuk is the upgrade.
• Russian salad. Diced potato, carrot, and peas bound in mayonnaise. In Türkiye it often goes by Amerikan salatası, which says something about how borrowed dishes get renamed on the way in. Cold and creamy against the hot base.
• Sweet corn. Straight from the can, and correct that way. Pops of sweetness between richer bites.
• Pickles and olives. Chopped cucumber pickles and sliced black or green olives cut through all that dairy. Our pickles and olives collection covers both, including Turkish turşu if you want the sharper, brinier stall flavor.
• Ketchup and mayonnaise. Zigzagged over the top at the end. Some stalls add pickled red cabbage or sautéed mushrooms; nobody skips the sauce zigzag. The squeeze bottles live in our condiments and sauces collection.

The rule underneath the choices: alternate hot with cold, rich with acidic, soft with crunchy. A kumpir that's all cheese, sausage, and mayo eats heavy by the fourth bite. The pickles are not a garnish — they're the brakes.

How do you make kumpir at home?

This recipe serves four and takes about 20 minutes of actual work; the oven does the rest. Prepare the toppings while the potatoes bake and keep them cold — the temperature contrast is part of the dish.

Ingredients (serves 4)

For the base:

• 4 large starchy potatoes (russets work well), 12–16 oz / 340–450 g each
• 1 tbsp olive oil, for the skins
• 4 tbsp (55 g) unsalted butter
• 2 cups (about 200 g) grated kaşar cheese (or mild cheddar plus low-moisture mozzarella)
• 1 tsp fine salt, plus more to taste

For the toppings (pick several):

• 6 oz sucuk, sliced into thin coins, or sliced hot dogs
• 1 cup Russian salad (diced boiled potato, carrot, peas, mayonnaise)
• 1 cup canned sweet corn, drained
• 1/2 cup chopped pickles
• 1/2 cup sliced black or green olives
• Ketchup and mayonnaise, for the finishing zigzag
• Optional: pickled red cabbage, sautéed mushrooms

Method

1. Heat the oven to 425°F (220°C). Scrub the potatoes, dry them well, and prick each one several times with a fork. Rub the skins with olive oil and a little salt.
2. Bake directly on the oven rack for 60–75 minutes, until the skin is crisp and a skewer slides into the center with no resistance. Big potatoes need the full time — an underbaked center will not whip.
3. While the potatoes bake, fry the sucuk coins in a dry skillet over medium heat, 1–2 minutes per side, until the edges curl. Prepare the remaining toppings and refrigerate them.
4. Working with one hot potato at a time, cut a deep slit lengthwise without cutting through the bottom skin. Press the ends toward each other to open a wide pocket.
5. Add a quarter of the butter and a pinch of salt to the pocket. Mash and whip the flesh with a fork, keeping the skin intact.
6. Add a quarter of the kaşar in two handfuls, whipping after each, until the cheese pulls into strands and the base is creamy and no longer floury. Taste for salt.
7. Load the toppings in stripes across the open face — sucuk, Russian salad, corn, pickles, olives — then finish with a ketchup and mayo zigzag. Serve immediately, while the base still steams.

How do you keep the base creamy instead of gluey?

Three things. Use starchy potatoes — waxy varieties whip into paste. Work while the potato is genuinely hot, because kaşar only melts into strands above the temperature a cooling potato holds for a few minutes. And add the cheese gradually: dumping it all at once cools the flesh and leaves you chasing unmelted clumps with a fork.

Kumpir FAQ

What does "kumpir" mean?

Kumpir is simply the Turkish name for this loaded baked potato dish. The word likely arrived from the Balkans, where krumpir remains the everyday Croatian word for potato. In Türkiye today, kumpir refers to the whole preparation: baked potato, whipped cheese-butter base, and toppings.

What cheese do you use for kumpir?

Kaşar, Türkiye's yellow melting cheese made from cow's or sheep's milk. It tastes like a young cheddar and stretches like mozzarella, which is exactly what the whipped base needs. If you can't get kaşar, blend mild cheddar for flavor with low-moisture mozzarella for stretch.

What is the Russian salad on kumpir?

A cold salad of diced boiled potato, carrot, and peas bound with mayonnaise — in Türkiye it's often labeled Amerikan salatası. On kumpir it plays temperature and texture contrast: a cool, creamy stripe against the hot, cheesy base. Store-bought or homemade both work.

Can I make kumpir in an air fryer or microwave?

An air fryer works well: 400°F for 45–55 minutes gives a crisp skin on large potatoes. A microwave alone leaves the skin soft, so if you're short on time, microwave the potato most of the way, then finish it in a hot oven for 15–20 minutes to crisp the skin.

What potatoes are best for kumpir?

Big and starchy. Russets are the closest US match for the oversized baking potatoes Istanbul stalls use — their dry, fluffy flesh whips up creamy once the butter and kaşar go in. Skip waxy varieties like red or fingerling potatoes; they turn dense and gluey when whipped.

Is kumpir a full meal?

Yes — that's how Istanbul eats it. One loaded kumpir carries potato, cheese, sausage, and vegetables in a single package, and a stall-sized portion is genuinely filling. At home, one large potato per person with a generous topping spread makes a complete dinner, no sides required.