250g/9oz floury potatoes, peeled and sliced into 1cm/陆in thick chips
100驳/3陆辞锄 onion, chopped
150驳/5陆辞锄 swede, peeled and sliced into 1cm/陆in thick chips
500g/1lb 2oz plain flour, plus extra for dusting
salt and freshly ground black pepper
1陆 tsp salt
500g/1lb 2oz cold butter, cut into 2cm/戮in cubes
1 free-range egg, beaten, to glaze
400g/14oz skirt steak, cut into 1cm/陆in pieces