White fish with mustard

6 portioned pieces of white fish

2 lemon (juice)

1 onions

2 Art. l. margarine

2 Art. l. vegetable oil

1 Art. l. mustard

black pepper

salt

Pepper and salt fish pieces.

Saute in butter until tender onions, then add the fish and pour the juice of 2 lemons, half a cup of water, boil for 15 minutes all.

Dissolve margarine, mix with mustard, before serving white fish with mustard sauce cooked watered.