Heat oven to 220C/fan 200C/gas 7.
Add flour, salt and baking powder into a large bowl then mix.
Add butter cubes and rub in with your fingers until the mix looks like breadcrumbs.
Stir in sugar.
Add the milk to your mix and combine it quickly - it will be wet at first.
Scatter some flour onto the work surface.
Tip out the dough out.
Fold the dough over with well floured hands.
When the dough is smooth pat into a round, about 5cm deep.
Take a 5cm cutter and cut out your scones.
Brush the tops with a beaten egg, then carefully place onto the hot baking tray.
Bake for 10 mins until risen and golden on the top.
Leave to cool for a few minutes on a cooling rack.
Eat just warm or cold on the day of baking, generously topped with jam and clotted cream.