Preheat the oven to 375°F. Line a baking sheet with parchment paper.
Combine the dry ingredients in a large mixing bowl and stir until combined.
Whisk the buttermilk and molasses together in a separate bowl. Gradually add the liquid to the dry ingredients, stirring to form a sticky dough.
Using floured hands, gently knead the dough into a ball. Place the dough on top of the parchment-lined baking sheet. Use a serrated knife to score a cross in the center of the dough.
Transfer the baking sheet to the oven and bake for 50-60 minutes, until the bread sounds hollow when tapped on the bottom. Transfer to a wire rack and allow to cool before slicing.