Remove the membrane from the pollack roe and separate the eggs.
Dice the onion and potato.
Slice the carrot thinly.
Heat cooking oil in a frying pan, then stir-fry the onion, potato, and carrot.
Once the vegetables are cooked, add the pollack roe and stir-fry briefly.
Add curry powder and water, then mix well.
Reduce the heat and simmer until thickened.
Taste and season with salt and pepper.