150g/5oz onion, peeled, finely chopped
450g/1lb potato, peeled, finely chopped
150g/5oz swede, peeled, finely chopped
450g/1lb plain flour, plus extra for dusting
1 tbsp plain flour
2 tsp baking powder
1 tsp salt
125g/4陆oz unsalted butter
40驳/1陆辞锄 butter
1 free-range egg, beaten
2 free-range egg yolks
300g/11oz beef skirt (or braising steak), finely chopped