Pre-heat the oven to 200c. Sieve the flour into the large bowl, add the baking margarine, caster sugar and mix well by hand. (You can use a mixer if you prefer)
Now gradually add milk and mix until you get a firm dough, that is moist, but not too sticky.
Cut the scones
Flatten the dough out on a board to a depth of about 4cm. Using the pastry cutter, you should be able to make 9-11 scones, placing each one on the baking tray as you go.
Lightly dust the scones with flour and put in the oven for approx 12 minutes. To see if they are baked, you can put a knife in the top and there shouldn't be any dough on the knife when you pull it out. Be careful not to over cook them.
After cooling on a wire rack, add Jam and then clotted cream (The Cornish way) and Enjoy with a nice cup of tea.