Lightly butter a medium baking dish with 1 tablespoon butter. Season haddock fillets with salt and pepper. In a small bowl mix together egg yolk and mustard. Brush this mixture liberally over top ...

Haddock is available fresh or frozen, usually as a fillet, but very occasionally as a whole, headless fish. In the spring, haddock roe are also available; they can be poached or fried. Haddock is ...