Cod with beets, watercress sauce and bottarga

Today’s recipe is a dish composed of cod, beets, watercress sauce, beer and bottarga, it’s a dish that combines freshness and exoticism. This recipe comes all the way from Paris from the restaurant “La Fine Mousse“. Ingredients 3 red beets 3 yellow beets 1 chiogia beetroot  1 bunch of watercress 100gr butter  1 cod fillet…