30g/1oz semolina
salt and freshly ground black pepper
1 tsp mustard powder
15驳/陆辞锄 poppy seeds
50驳/1戮辞锄 self-raising flour, plus extra for dusting
15驳/陆辞锄 walnuts, finely chopped
75驳/2戮辞锄 butter, diced
1陆 tbsp beaten free-range egg white
50驳/1戮辞锄 Parmesan, finely grated