300g fresh cod
200 g potato
Chop the onion and potatoes sliced very thin. Put them in a baking dish to which we previously spread the base with a little butter well extended
Must be fresh cod and well desalted, which we set in the slices or portions that we want and above the base by potatoes. Salpimentamos pieces and accompany with a little parsley
We light the oven at about 190 degrees, when we put the source temperature on cod and leave it for 20 minutes. It will be the time to do that cod is good inside and out.