This recipe comes courtesy of the CWA documentary 'Not All Tea and Scones'.
500g flour
60g butter
60g icing sugar
1 1/2 cups milk
1/2 tsp salt
30g cream of tartar
15g bicarb soda
1 egg
Rub butter into sifted dry ingredients using spirit fingers. Add milk and egg all at once. Knead gently and lovingly like a CWA chick. Gently pat down to 3cm or so thickness. Rest dough for 5 minutes. Cut into rounds and bake in a hot oven on a greased tray for 15 minutes until risen.