Preheat your oven to 220 degrees cel. Grease a baking tray and set aside.
In a bowl add the flour, baking powder, salt and sugar. Mix well.
Cut the butter into cubes and add to the flour. Working quickly rub it in the flour. It doesnt have to be fine. Chunks are ok!
Add in half the milk a little at a time and mix. Slowly add in the rest. Your dough should be slightly sticky and soft.
Place on a floured surface and cut into circles.
Place on the baking tray and brush with the egg wash.
Bake for 12 to 15 mins till the tops are golden brown.
