Butter and lightly salt a baking tray and preheat the oven to 160C
In a pan add a knob of butter (25g), the anchovies and a generous pinch of thyme let it sizzle for a minute then add a couple glugs of wine then add a dash of double cream and ½ tsp lemon zest
Chop leeks into 1-2 inch slices and wash, lay out upright in the tray add the pan sauce and slot a few bay leaves between the leeks. Add blobs of butter and cover with foil
Bake for 45 mins at 160C then take off foil and finish at 200C for another 30 mins
Let it rest and remove bay leaves
