Pan-fried pike-perch with onion

Pike-perch dries out in the pan within minutes: it has almost no fat, and the fillet is thin. Two things work against that here, one after the other — half an hour in lemon juice and a thin layer of flour.

The marinade doesn't do what people expect of it. It doesn't "soak" the fish all the way through in thirty minutes — it draws a little moisture and salt to the surface, and it's exactly this moisture that turns into a crust under the flour. The crust is what holds the juice inside — without it, the pike-perch will give it up to the pan within the first minute.

The onion is fried after the fish, in the same oil. It has picked up the taste of the pike-perch and lemon, and the onion rings take it up; fried separately, the onion would just be a side garnish. Dill and garlic go in right at the end, for one minute — after that they start to burn.

A hot pan gives a crust the other two methods skip: pike-perch braised in cream sauce with Dijon mustard stays softer and needs no flipping, while the Polish-style version finished with egg sauce poaches the fish first and sauces it after.

Caloric content: 150kcal

Notes

• Half an hour of marinating is the minimum, but not an hour. Over time, citric acid starts to "cook" the surface of the fillet, like in a ceviche-style dish; thirty minutes gives flavor, ninety minutes gives dense white flesh.
• Shake off the excess flour. A thick layer peels off the fish in one piece and burns in the oil separately from it.
• Lay the fish in oil that's already hot. In a lukewarm pan the flour will soak up the fat instead of forming a crust — the pike-perch will end up frying in its own juice.
• Don't flip the pieces before they've browned. Until the crust has set, the fillet sticks and tears; a piece that's ready lifts off the bottom on its own.
• Cut the onion into rings, not finely. Finely cut onion will burn in the same time it takes thick rings to just start softening.
• Dill and garlic — the last minute. Both release their aroma right away, and after two minutes in hot oil they turn bitter.

Questions and answers

How long to fry pike-perch in a pan?

A few minutes on each side, until golden brown. The exact time depends on the thickness of the piece — go by color, not by the clock.

Why marinate the fillet before frying?

So moisture appears on the surface for the flour to turn into a crust, and so the lemon removes the muddy river taste. Half an hour is enough.

Why does the pike-perch stick to the pan?

The fish was placed in oil that wasn't hot enough, or it was flipped before the crust had set. A piece that's ready lifts off the bottom on its own.

Do you have to use fillet?

No, bone-in pieces fry the same way, just longer and over lower heat — otherwise the crust will be ready before the meat near the spine.

Recipe and step-by-step photos — kolizhanka.net.ua.