Sift the flour, baking powder, salt and sugar into a mixing bowl. Add the butter in pieces and rub in with the fingertips until the mixture resembles breadcrumbs. Add the egg and milk while mixing with a knife to form a wet, sticky dough.
Turn the dough on to a well-floured board and knead lightly into a flat, round shape. Dust a little flour over the dough and pat or gently roll out until
Bake in the preheated oven until well risen with a golden-brown crust. Cool on the baking sheet for 2 minutes then transfer to a cloth-lined plate or basket and serve while still hot.