INFUSED WATER JUG RECIPES

Steps:

• Place the fish fillets in a large, wide saucepan and pour over the milk. Add the onion wedges and bay leaves, tucking them in around the fish. Bring to a very gentle simmer, then cover with a lid and remove from the heat immediately. Leave to stand and infuse for 10 mins or until the fish is just cooked. Drain the fish in a colander over a large jug to reserve the infused milk, then tip the fish into a bowl. Set aside.
• Meanwhile, make the topping. Put the potatoes in a large saucepan of cold water, bring to the boil, then simmer for 15 mins or until the potatoes are soft but not falling apart. Drain well, return to the pan and mash with the butter, half the cheese and the crème fraîche until smooth. Season to taste and set aside.
• To finish the filling, melt the butter in a medium saucepan and stir in the flour. Cook for a few secs, then gradually add the infused milk, stirring over a medium heat for 3 mins until the sauce is smooth and thick. Stir in the spinach and wine or vermouth, if using, and cook for 2 mins more. Remove from the heat and stir in the dill. Season to taste.
• Heat oven to 200C/180C fan/gas 6. Spoon a third of the sauce into the base of a 3-litre shallow rectangular dish. Scatter half the fish fillets over the sauce, breaking them into chunky pieces and discarding the skin, any stray bones, onion and bay leaves as you go. Pour over another third of the sauce, then top with more fish. Continue the layers once more, finishing with sauce.
• Spoon the potato over the fish mixture, starting at the edges. Swirl the potato with the back of a spoon and sprinkle over the remaining cheese. Place the dish on a baking tray and bake in the centre of the oven for 45 mins or until the potato is golden and the filling is bubbling.

Steps:

• First place the milk in a small saucepan and add the parsley stalks, bay leaf, mace (if using), peppercorns and onion. Then place it over a low heat and let it come very slowly up to simmering point, which will take approximately 5 minutes. Then remove the saucepan from the heat and strain the milk into a jug, discarding the flavourings.
• All this can be done ahead of time, but when you want to make the sauce, use the same washed pan and place it over a gentle heat. Begin by melting the butter gently - don't over-heat it or let it brown, as this will affect the colour and flavour of the sauce. As soon as the butter melts, add the flour and, over a medium heat and using a small pointed wooden spoon, stir quite vigorously to make a smooth, glossy paste. Now begin adding the infused milk a little at a time - about 1fl oz/25ml first of all and stir again vigorously. Then, when this milk is incorporated, add the next amount and continue incorporating each bit of liquid before you add the next. When about half the milk is in, switch to a balloon whisk and start adding large amounts of milk, but always whisking briskly. Your reward will be a smooth, glossy, creamy sauce.
• Now turn the heat down to its lowest setting and let the sauce cook for 5 minutes, whisking from time to time. While that's happening, taste and season with salt and freshly milled black pepper. If you wish to keep the sauce warm, all you do is pour it into a warmed jug and cover the surface with clingfilm to stop a skin from forming, then place the jug in a pan of barely simmering water.