Turn over the fish, add a third of the butter and cook through, another 3 mins approx. Add the butter to the pan as it foams and browns squeeze in the lemon and parsley and pour over the fish and potato.A simple way to enjoy fish ... yum! (Broadcast: 30 Mar 2012). 1  Text Size.2  Print.3  Email.ut the fish in even size portions. Heat a large saute sauté pan with the. Oil add the fish carefully seal and brown for about 3mins skin side. Up turn over the, fish add a third of the butter and cook, through another 3 mins. approx