Preheat your oven to 425°F (220°C).
In a large mixing bowl, combine the flour, baking soda, and salt.
Make a well in the center of the dry ingredients and pour in the buttermilk.
Mix the ingredients gently until a soft dough forms, being careful not to overwork it.
Turn the dough onto a lightly floured surface and shape it into a round loaf.
Place the shaped loaf on a baking sheet lined with parchment paper.
Score the top of the loaf with a deep cross, cutting about ½ inch into the dough.
Bake for 30-35 minutes, or until the loaf is golden brown and sounds hollow when tapped.
Remove from the oven and cool on a wire rack for at least 10 minutes before slicing.