Serbian cuisine · Savoury main, breakfast or snack

Krompiruša

Coarsely grated potato and finely chopped onion are seasoned just before rolling in filo, then baked until the potato is completely tender and the pastry crisp. Thin filling bands are the key to even cooking.

Serbian National Dishes
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Krompiruša
Yield 8 generous pieces
Preparation time 30 minutes
Cooking time 40 minutes
Passive time 10 minutes
Ingredients ↓
Overview

Krompiruša — Rolled Potato and Onion Filo Pie

Krompiruša is a savoury potato-filled pastry shared across Balkan cooking, including Serbia. The essential filling is modest—potato, onion, salt and black pepper—wrapped here in ready-made thin filo and baked as rolls. That simplicity leaves little room to hide poor technique: the potato must become fully tender at the same time the pastry turns crisp and browned.

Raw coarsely grated potato is used rather than a pre-cooked filling. Grating gives many thin pieces that can soften during a 40-minute bake, while finely chopped onion distributes sweetness and aroma without creating large wet pockets. Salt is added only when assembly is about to begin because salted raw potato releases water quickly. Letting the mixture stand can turn a dry-looking filling into a puddle before it reaches the oven.

The filling should be spread in thin, even bands across the filo. A thick cylinder of potato insulates its own centre and may remain crunchy after the outside has browned. Oil mixed with a little water keeps the pastry pliable during rolling and helps produce a crisp surface in the oven. The water is not intended to soak the sheets; only enough brushing liquid is used to prevent dry, brittle folds.

A 200 °C oven provides enough heat to brown the filo while cooking the potato. Colour is not the final test. A thin knife should pass through the filling without resistance, and there should be no raw, starchy crunch. If the top reaches the desired colour before the potato is tender, the pastry can be shielded lightly while baking continues rather than being removed early.

Krompiruša benefits from a ten-minute rest after baking. The pause releases some trapped steam and allows the potato layer to settle, producing cleaner cuts and a drier underside. Served warm, it is substantial enough for a light meal and pairs naturally with yogurt or cultured milk, although the pie itself contains neither egg nor dairy.

Practical

Practical

  • Season at the last momentSalt the potato only just before filling so it does not release excessive water while waiting.
  • Keep the filling shallowSpread a shallow line of filling rather than a thick mound.
  • Test the potatoJudge doneness by potato tenderness as well as pastry colour.
Ingredients

Ingredients

Potato filling

  • 1200 g waxy or all-purpose potatoes — peeled and coarsely grated
  • 200 g yellow onion — finely chopped
  • 12 g fine salt
  • 2 g ground black pepper

Pastry and brushing

  • 500 g thin filo pastry
  • 100 g sunflower oil
  • 100 ml water
Directions

Directions

Prepare and fill

  1. Prepare the potato fillingCoarsely grate the 1,200 g peeled potatoes and finely chop the 200 g onion. Combine them with the 12 g salt and 2 g black pepper only when the filo is ready to be filled. Allow about 15 minutes for grating, chopping and mixing, and do not leave the salted mixture standing because the potato will release water.

  2. Mix the brushing liquidStir the 100 g sunflower oil with the 100 ml water for about 2 minutes, just enough to disperse the mixture for light brushing.

  3. Roll the pieKeep the 500 g filo covered between uses. Brush lightly, spread the potato mixture in shallow, even bands and roll without forming thick cylinders. Arrange the rolls on a large lined tray. Allow about 13 minutes for assembly.

Bake

  1. Bake until the potato is tenderBake at 200 °C for about 40 minutes. The pastry should become deep golden and crisp, but colour alone is not enough: insert a thin knife through a filled section and confirm that it passes through the potato without resistance and that no raw starchy crunch remains.

  2. Rest before cuttingLeave the baked krompiruša in its tray for 10 minutes. The strongest steam should subside and the pieces should cut cleanly without wetting the underside.

Practical

Practical

Serving

Serve krompiruša warm after its short rest. Yogurt or cultured milk is a common accompaniment, but it remains separate from the base recipe, which contains no dairy or egg.

Make ahead

Whole peeled potatoes can be held in cold water for a few hours if preparation must begin early. Grate them only near assembly, and add salt only when the filo is ready, because salted grated potato sheds water quickly.

Storage and reheating

Refrigerate leftovers within 2 hours at 4 °C or below and use within 3–4 days. Reheat in a 180 °C oven until the pastry is crisp and the centre reaches 74 °C when serving leftovers hot.

Substitution

The 200 g yellow onion can be replaced with 200 g finely sliced leek, using the white and pale-green parts. Leek makes the filling sweeter and less sharp while keeping similar moisture if sliced finely.

Control points

Control points

  • Potato stays firm after the pastry brownsGuidance: Filling was too thick or potato pieces too large.Adjustment: Grate more coarsely but thinly distribute the filling; shield the top lightly and continue baking if needed.
  • Pie steams and softens underneathGuidance: Potatoes were salted too early and released water.Adjustment: Season immediately before rolling and avoid letting the filled rolls stand.
Nutrition

Nutrition

  • Serving size1 of 8 pieces
  • Calories425 kcal
  • Carbohydrates61 g
  • Protein8 g
  • Fat16 g
  • Fibre5 g
  • Sodium900 mg

These figures are approximate; ingredient brands and exact portioning can change the final values.

Allergens and food safety

Allergens and food safety

Wheat/gluten. The base recipe is dairy-free and egg-free, but packaged filo labels must be checked for cross-contact. Do not leave the raw grated potato-onion mixture standing warm for prolonged periods; assemble and bake promptly. Refrigerate leftovers within 2 hours at 4 °C or below and reheat to 74 °C when serving hot again.

Result: Crisp rolled filo around a simple peppered potato-and-onion filling that is fully tender from edge to centre.

Key: Spread the raw potato filling thinly, season only just before assembly and judge doneness by potato tenderness rather than crust colour alone.