Sift the dry ingredients into a bowl and mix well.
Slowly add the buttermilk and mix to a soft dough. Don't add all the buttermilk at once, incase you need a little less than the recipe states. Work quickly and lightly - don't overwork the dough!
Turn the dough onto a floured work surface and roll out until it's approximately ½ inch/1¼ cm thick. Cut into four farls.
Bake on a griddle or frying pan on a medium low heat for 15-20 minutes, turning once or twice. Remove when golden brown and wrap in a cloth until cool (this keeps the crust soft).