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Icelandic fish balls

Fiskibollur

A crisp, golden crust around tender white fish—served the Icelandic way with boiled potatoes, soft onions, and a mild curry sauce.

Golden Icelandic fish balls with boiled potatoes, fried onions, and pale curry sauce
A familiar Icelandic dinner, browned at the edges and gentle within.
Prep 25 minutes
Cook 25 minutes
Makes 12 fish balls
Serves 4 people

Fiskibollur belong to the practical, deeply comforting side of Icelandic cooking. White fish is minced with onion, bound with flour or starch, loosened with milk, then shaped and browned in a pan. The name says “fish balls,” but many home cooks make them as plump, slightly flattened patties—the extra surface gives the skillet more room to build a savory crust.

An everyday classic with a long paper trail

The dish did not spring from one fixed national recipe. Icelandic food writer Nanna Rögnvaldardóttir traces an early relative to the 18th-century manuscript Pipar í öllum mat, where cooked fish was worked with butter, egg yolk, bread, and cream. A closer predecessor appeared as fisksnúðar in an 1858 cookbook; late-19th-century meat grinders then made finely mincing fish much easier at home.

Commercial versions became part of the story too. Rögnvaldardóttir found Icelandic advertising for imported Norwegian canned fish balls from 1888, production in Ísafjörður by 1906, and later domestic canning from the 1920s. That helps explain why the dish can spark two kinds of nostalgia: a tray of homemade, fried fiskibollur and the softer canned kind warmed in sauce.

This is not museum food. It is adaptable home cooking: fish, a few pantry ingredients, and the sides a household likes best.

What makes a good fiskibolla?

The best versions land between flaky fish cake and delicate quenelle. They should hold together, but never feel bready or rubbery. Cod gives a clean flavor; haddock is a little sweeter. A combination works beautifully. Onion brings moisture, flour supplies structure, and potato starch keeps the bite especially tender.

Modern Icelandic recipes vary widely. One family recipe uses white fish, onion, wheat flour, potato starch, eggs, milk, salt, and pepper. A recipe from Iceland’s NLFÍ health institute follows the same basic architecture but adds whole-wheat flour, garlic, and dried soup herbs. The constants matter more than any one ratio: cold fish, a cohesive mixture, restrained seasoning, and careful browning.

Six Icelandic fish balls browning in a dark skillet
A broad pan and a little space between each piece help the crust brown instead of steam.

Cook it at home

Fiskibollur with mild curry sauce

This version stays close to the Icelandic home-style formulas in our sources while using measurements and cues that are dependable in a modern kitchen.

Ingredients

For the fish balls

  • 600 g / 1⅓ lb skinless, boneless cod or haddock, very cold
  • 1 small yellow onion (about 90 g), roughly chopped
  • 2 large eggs
  • 60 g / ½ cup all-purpose flour
  • 45 g / ⅓ cup potato starch
  • 1½ tsp fine sea salt
  • ½ tsp ground white pepper
  • 120–180 ml / ½–¾ cup cold whole milk
  • 2 tbsp neutral oil, butter, or a combination

For the sauce and plate

  • 750 g / 1⅔ lb small potatoes
  • 1 yellow onion, thinly sliced
  • 1 tbsp butter, for the onion
  • 30 g / 2 tbsp butter
  • 2 tsp mild curry powder
  • 30 g / ¼ cup all-purpose flour
  • 400 ml / 1⅔ cups whole milk
  • Fine sea salt and white pepper
Allergens Fish, egg, milk, and wheat.

Method

  1. 1

    Start cold.

    Pat the fish dry, check carefully for bones, and cut it into 3 cm / 1-inch chunks. Chill the food-processor bowl and blade if your kitchen is warm.

  2. 2

    Make the mixture.

    Pulse the fish and chopped onion until finely minced and cohesive, scraping the bowl once. Add the eggs, flour, potato starch, salt, and white pepper. Pulse just to combine.

  3. 3

    Add milk by feel.

    With the processor running in short bursts, add 120 ml / ½ cup milk. The mixture should be soft and tacky but still mound on a spoon. Add the remaining milk a spoonful at a time only if it feels stiff. Chill for 20 minutes.

  4. 4

    Shape and brown.

    Heat the fat in a wide skillet over medium. With damp hands or two wet spoons, form 12 squat balls. Fry in two batches for 3–4 minutes per side, adjusting the heat so the centers cook before the crust gets too dark.

  5. 5

    Finish safely.

    Cook until the centers are opaque and reach 63°C / 145°F. If the fish balls brown too quickly, transfer them to a 180°C / 350°F oven for 5–8 minutes to finish.

  6. 6

    Cook the sides.

    Simmer the potatoes in well-salted water until tender, then drain. Soften the sliced onion in 1 tablespoon butter over medium-low heat until golden at the edges, then set it aside.

  7. 7

    Make the sauce.

    Melt 30 g butter in a saucepan, bloom the curry powder for 30 seconds, then stir in the flour. Gradually whisk in the milk and simmer for 3–5 minutes. Season gently.

  8. 8

    Bring the plate together.

    Spoon the sauce beside or beneath the fish balls and add boiled potatoes and the soft onions. Serve immediately.

Overhead plate of Icelandic fish balls, potatoes, onions, and curry sauce
Keep the plate simple: fish, potatoes, sauce, onions.
Close view of a fish ball split open to show its moist white-fish texture
The center should be moist and cohesive, with the fish still recognizable.

Kitchen notes

Three details that make the difference

Keep the fish and milk cold

A cold mixture binds more cleanly and is less likely to turn loose or greasy. If the processor bowl feels warm, pause and refrigerate the mixture before shaping.

Let the milk quantity flex

Fresh cod, thawed haddock, and previously frozen fillets all hold different amounts of water. Treat the final 60 ml / ¼ cup as an adjustment, not a target.

Shape for the pan you have

Perfect spheres are not the goal. A squat ball is easier to turn, cooks more evenly, and develops more crust—one reason real-world fiskibollur often look like small fish cakes.

Research notes

Sources behind this article

  1. Matland: Fiskibollur af ýmsu tagi Icelandic culinary history, early recipes, canning, and serving traditions.
  2. Your Friend in Reykjavik: family fiskibollur recipe Household proportions, fish choices, and classic accompaniments.
  3. NLFÍ: Fiskibollur An Icelandic health institute kitchen’s recipe and oven-finishing method.
  4. University of Iceland / Matís: haddock mince in fish balls Ingredient structure, processing, and sensory work on Icelandic haddock.
  5. U.S. FDA: selecting and serving seafood safely Seafood handling and the 63°C / 145°F cooking guideline.