Buttered Jerusalem artichokes

Peel and finely slice 1kg Jerusalem artichokes, adding to a bowl of water and lemon juice. Heat 75g butter in a large frying pan over a medium heat and, once foaming, add the artichokes, 1 crushed garlic clove and 3 thyme sprigs.

Cook for 20 mins or so, adding another 75g cubed butter gradually, cube by cube, basting frequently so that the artichokes are always covered in foaming butter, until they’re a rich roasted colour. Just before serving, toss with the juice 1 lemon and season to taste.