Sift dry ingredients into a bowl.
Add beaten egg, milk and butter.
Quickly combine all ingredients into a dough.
Stand dough on a floured board for 20 minutes.
Gently roll out to required thickness (about 2cm).
Cut out circles using the rim of a glass dipped in flour.
Stand scones close together on a lightly floured baking tray for a further 15 minutes.
Bake at 210C for 10 minutes.