No I have never tried cod or any fish liver. :) Must be yummy, and I am going to try and find some, since you say it is good.
Now the traditional old recipe for taramosalata given to me by Giagia Maria, my husbands grandmother is:
-100 gr. white taramas, fish roe
-500 gr. cooked potatoes (or 500 gr. 1 day old bread, soaked in water and drained)
-60 gr. olive oil
-50 gr. fresh lemon juice
-50 gr. onion
-black olives for decorating
Pulse everything in a blender. Add several tablespoons olive oil if needed and serve.
However I like this version more:
the video is on greek but I like the plate as they serve it and present it with eggplant salad and potato salad.
-200 gr. white tarama, fish roe
-400 gr. one day old bread, soaked in water and drained
-juice of 1 to 1 and a half lime fruit (if you do not have one lemon is fine)
-2 cloves garlic
olive oil (60-70 gr.), pepper
the difference here is that you saute the onion and the garlic first until caramelized , so it gives a different taste. then you put everything in the blender, onion and garlic, tarams, bread, olive oil.