The Brussels sprouts were boiled in salted water for around eight minutes. The haddock was cooked in a flat saute pan in a little sunflower oil for eight minutes - four minutes on each side. I started off at a high temperature, and reduced it to the lowest when the fish was added to the saute pan. Cooked under glass, and turned once.
That's it! Completely delicious! Bought from Morrison's, who are pretty good with fish.