Turkey · Istanbul

Kumpir (Turkish Loaded Baked Potato)

A very large floury potato is baked until fluffy, mashed inside its skin with butter and kaşar, then covered with separate bands of corn, vegetables, pickles and olives.

A steaming cheese-mashed potato beneath a colourful topping bar Street food
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Open baked potato mashed with cheese and covered in Turkish toppings
The foundation is fluffy potato beaten with butter and melting kaşar inside the skin.
Prep 30 minutes
Cook 80 minutes
Total 1 hour 50 minutes
Serves 4
Ingredients ↓
Overview

How to Build an Ortaköy-Style Kumpir at Home

Kumpir is closely associated with the food stands of Istanbul's Ortaköy district, where enormous baked potatoes are opened to order and faced with a display of colourful toppings. The abundance is memorable, but the defining action happens before any corn or pickle is added. Steaming potato flesh is beaten inside its skin with butter and grated kaşar until smooth, rich and slightly stretchy. Without that hot cheese-mashed base, the dish is simply a baked potato carrying salad.

Choose the largest floury baking potatoes you can find, ideally close in weight so they finish together. Waxy potatoes hold firm for salads but resist becoming light and absorbent. Scrub the skins, dry them and bake directly on the oven rack. The skin should become dry and sturdy enough to act as a bowl, while a skewer passes through the centre without the slightest dense patch.

Timing is critical after baking. Split and mash one potato at a time while its trapped steam can melt the cheese. Protect your hands with a clean folded towel, loosen the interior without piercing the skin, then beat in one quarter of the butter, kaşar and salt. If all four potatoes are opened before mixing begins, the later ones cool and their cheese sits in rubbery shreds instead of disappearing into the flesh.

The topping list is deliberately generous but modular. Sweetcorn, peas and carrots, gherkins, olives and pickled red cabbage provide sweetness, brine, acid and colour. Drain each one thoroughly and hold it in its own bowl. This prevents a muddy mixed salad and lets diners omit ingredients they dislike. Mayonnaise and ketchup are optional finishing lines, not mandatory layers.

Baked-potato safety deserves attention. Potatoes held for long periods wrapped tightly in foil at room temperature have been associated with botulism risk. This method bakes them unwrapped and serves them immediately. If a baked potato must be stored, cool it promptly, refrigerate within two hours and keep it separate from the cold toppings. Never leave a foil-sealed cooked potato on the counter.

Practical

Practical

  • Match size before exact varietyLarge floury potatoes are ideal. If the only very large potatoes are an unknown variety, bake one in advance: a dry, crumbling interior will accept butter and cheese better than a translucent waxy one.
  • Grate cheese finelyFine strands melt in seconds against the steaming flesh. Thick cubes cool the potato while their centres stay firm, making the base uneven and difficult to beat.
  • Drain more than you think necessaryPickles and cabbage can look dry while holding brine between pieces. Leave them in sieves and blot the base of each bowl so liquid does not dilute the cheese mash.
Ingredients

Ingredients

Hot potato base

  • 1.6-2 kg (4 very large) floury baking potatoes
  • 100 g unsalted butter cubed
  • 240 g kaşar or another mild melting cheese finely grated
  • 8 g fine salt

Cold topping bar

  • 180 g cooked sweetcorn drained
  • 220 g cooked peas and diced carrots cooled and drained
  • 160 g gherkin pickles diced and drained
  • 100 g pitted green and black olives sliced
  • 160 g quick-pickled red cabbage well drained
  • 120 g mayonnaise optional
  • 100 g ketchup optional
Directions

Directions

Prepare the topping bar

  1. Cook and chill the vegetables.Cook the sweetcorn, peas and diced carrots until tender, then cool them quickly. Drain each topping separately. Dice the gherkins, slice the olives and drain the cabbage.

    Every topping is cold, colourful and dry enough not to leave a puddle in its bowl.

  2. Set up individual bowls.Arrange corn, peas and carrots, pickles, olives, cabbage, mayonnaise and ketchup in separate serving containers. Refrigerate the perishable bowls until the potatoes are nearly ready.

    Diners can identify and choose every topping without stirring through a mixed salad.

Bake the potato bowls

  1. Heat the oven fully.Heat the oven to 220°C. Scrub the potatoes, dry them completely and prick each several times with a fork. Do not wrap them in foil.

    The skins are clean and dry, with shallow vents rather than deep cuts.

  2. Bake until no resistance remains.Place the potatoes directly on the centre rack with a tray below. Bake for 70-90 minutes, turning once if the oven heats unevenly.

    A skewer slides through the exact centre effortlessly and the dry skin gives under gentle pressure.

  3. Keep them hot, not held.Bring the toppings to the table during the final 10 minutes. Once the potatoes are tender, start mixing immediately rather than switching off the oven and leaving them enclosed.

    Strong steam escapes as the first potato is cut open.

Mix and load to order

  1. Open one potato safely.Hold a potato with the folded towel and cut a long slit across the top. Squeeze the ends gently to open it, keeping the base and most of the skin intact.

    The skin forms a deep boat and the interior is dry, white and fully fluffy.

  2. Beat in butter and cheese.Loosen the flesh with a fork. Add 25 g butter, 60 g kaşar and one quarter of the salt, then beat rapidly inside the skin until smooth. Repeat one potato at a time.

    Butter disappears and the potato becomes glossy with short strands of melted cheese.

  3. Add toppings in bands.Spoon chosen cold toppings over each hot base in separate rows, leaving their colours and textures visible. Avoid overfilling so the skin can still support the potato.

    Corn, vegetables, pickles, olives and cabbage remain individually recognisable.

  4. Finish and serve.Drizzle with optional mayonnaise or ketchup and serve each kumpir immediately before moving to the next if necessary. Provide forks and a sturdy plate.

    The base is still steaming beneath the cold toppings when the first spoonful is taken.
Practical

Practical

Serve a crowd in waves

For more than four diners, hold uncut potatoes in a 90°C oven for only a short interval and mix them one at a time. Keep the cold topping bar over ice.

Customise without losing the core

Additional Russian salad, sausage or grated cheese are common choices, but preserve the butter-kaşar mash and separate toppings. That structure keeps the result recognisable as kumpir.

Control points

Control points

  • The centre remains hard. Return the whole potato to the oven for 10-15 minutes. A microwave can finish it, but the skin will soften and should be re-crisped briefly.
  • The cheese does not melt. The potato cooled before mixing or the cheese was too coarse. Reheat the opened potato briefly and work with finely grated cheese one serving at a time.
  • The skin tears apart. It was underbaked, cut too deeply or aggressively scraped. Leave a thin layer of flesh against the skin and use a plate to support it.
  • Water collects under the toppings. Vegetables and pickles were insufficiently drained. Lift them off, blot gently and serve the corrected potato immediately.
Nutrition

Nutrition

  • Calories790 kcal
  • Protein24 g
  • Carbohydrates105 g
  • Fat34 g
  • Saturated fat17 g
  • Fiber13 g
  • Sugars16 g
  • Sodium1250 mg

1 of 4 loaded potatoes — Approximate values assume equal portions of all listed toppings and sauces; a customised topping selection can change them substantially.

Allergens · Food safety

Allergens · Food safety

Allergens: Milk, Egg, optional mayonnaise

Food safety: Protect hands and face from escaping steam when opening each potato. Never hold foil-wrapped baked potatoes at room temperature; serve, keep hot or cool promptly. Keep mayonnaise and cooked vegetable toppings at 4°C or below and discard after 2 hours out.

Storage: Store unfilled baked potatoes and toppings separately for up to 3 days. Reheat potato flesh to 74°C before adding fresh butter, cheese and cold toppings.

FAQ

FAQ

Is foil needed for a soft centre?

No. A very large floury potato becomes fully tender without foil, and its uncovered skin becomes a stronger serving bowl. Foil also creates an avoidable holding-safety concern.

What can replace kaşar?

Use a mild cheese that melts smoothly, such as young provolone, low-moisture mozzarella or a blend of mozzarella and mild cheddar. Avoid strongly aged cheese that overwhelms the toppings.

Can I prepare kumpir entirely ahead?

Prepare and chill every topping ahead, but bake and mix the potatoes near service. An assembled kumpir reheats poorly because cold salads warm while the potato base dries.

Do all listed toppings have to be used?

No. Choice is central to the street-food experience. Keep the hot butter-and-cheese base, then select contrasting sweet, briny, creamy and crunchy toppings according to preference.

Build from heat toward contrast

Build from heat toward contrast

A good kumpir moves from steaming, stretchy potato underneath to cool, bright and sharply defined toppings above, all held by a crisp sturdy skin.

Bake the centre completely, mix butter and finely grated cheese while it is fiercely hot, and drain every cold topping before assembly.

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