Preheat the oven to 200C.
Sieve the flour, salt and bicarbonate of soda into a large bowl and stir.
Make a well and pour in the buttermilk, then mix quickly to make a dough.
Place on a lightly floured surface and knead briefly, you almost want to treat the dough like it’s really hot when you’re kneading it, handling it as little as possible. Then form into a round and flatten slightly before placing it on a lightly floured baking sheet.
Cut a cross in the top with a sharp knife and bake for about 30 minutes or until the loaf sounds hollow when tapped on the bottom.
Cool on a wire rack.