mix the dry ingrediants together, making sure there are no lumps in the soda.Add buttermilk and mix well with a wooden spoon. Turn out into a lightly floured surface and knead lightly until smooth. Placed onto a baking sheet and with sharp knife mark the top with a cross. Bake at the top of a hot oven for three quarters of an hour, until the bottom of the loaf sounds hollow when rapped with the knuckle.

According to my G.grandfather from Co. Clare, Ireland