A hearty gratin that's a real winter wamer ... Scatter over the herbs and top with the haddock. Pour the cream mixture in between the cracks and over the top. Scatter over the remaining cheese ...

Add the cream and simmer for 2 minutes. Add the haddock and cook until just done – about 5 minutes. Check seasoning and add the mussels. Place in a baking dish. Melt the butter and fry off the ...