Preheat your oven to 425°F (220°C).

In a large bowl, whisk together the flour, baking soda, and salt.

Gradually pour in the buttermilk while gently stirring the mixture.

Mix until the dough comes together; it should be sticky but manageable.

Lightly press and fold the dough on a floured surface a few times.

Shape the dough into a ball and pat it down slightly.

Transfer the dough onto a parchment-lined baking sheet.

Slash an X on top of the dough with a sharp knife.

Bake for 30-35 minutes or until the crust is golden brown and sounds hollow when tapped.

Remove from the oven and cool on a wire rack before slicing.