Place the flour, baking powder and sugar in a bowl and mix together. Cut the butter into cubes and rub into the flour mixture with your fingers until the mixture resembled breadcrumbs.
Stir in the milk.
Tip the mixture onto a floured surface and knead quickly to form a smooth dough. Add some flour or milk as needed until the dough is smooth and not sticky.
Form the dough into a ball. Preheat the oven to 200°C (180°C fan, gas 6).
Flatten the dough with your hand until about 2cm thick and stamp out 5cm circles with a cutter. Place on a greased baking tray.
Gather up the dough trimmings, flatten again and cut out more circles.
Cut the remaining scones.
Place all scones on the tray and bake in the oven for 10-15 minutes until golden brown. Remove from the oven and allow to cool. Serve with clotted cream and jam.