Aaliit (cod, carrot and potato stew)

Instructions

1. Peel and cut the potatoes and carrots into large cubes.
2. Melt the butter and sweat the thinly sliced onion until translucent.
3. Sprinkle with flour, stir, then gradually pour in the milk and water, stirring constantly.
4. Add the vegetables and let simmer for 15 minutes.
5. Add the cod cut into pieces and cook for another 10 minutes over low heat.
6. Season with the mustard, salt and pepper, then sprinkle with chopped parsley.