Preheat the oven to 425 F. degrees. Lightly grease and flour a cake pan or cast iron pot.
In a large bowl, sieve and combine all the dry ingredients.
Add the buttermilk to form a sticky dough. Add raisins. Place on floured surface and lightly knead (too much allows the gas to escape.)
Shape into a round flat shape in a round cake pan or cast iron pot and cut a cross in the top of the dough.
Cover and bake for 30 minutes. Remove cover and bake for an additional 15 minutes.
The bottom of the bread will have a hollow sound when tapped to show it is done.