Heat a girdle or heavy based frying pan and lightly grease. Sift flour, salt, cream of tartar and bicarbonate of soda together and mix in the caster sugar. Create a well in the centre and add the egg and some of the milk. Slowly mix the flour into the egg and milk, adding more milk as you go, until you have a mixture which has the consistency of thick batter.

Drop a small amount of batter onto the greased girdle or pan - bubbles should rise to the top in a few seconds, if it is the right temperature. Drop in enough mixture to make individual small scones. When the underside is brown (and bubbles are bursting on the top) turn over and cook the other side. You may need to regrease the pan after each batch.