The accompanying lemon butter sauce is rich, tangy, and aromatic, adding the perfect touch to the fish. Ready in under 30 minutes, this recipe is great for busy weeknights or impressing guests.

Add the lemon juice and a grind of black pepper (if using) – and whisk. Either pour the sauce over the fish or, using a fish slice, remove the fish to individual plates and spoon over the sauce.

Fear not, as Mary Berry comes to the rescue with a dish that's bursting with flavour, offers a satisfying crunch, and is a ...