Preheat your oven to 450°F (230°C).
In a large mixing bowl, whisk together the flour, baking powder, baking soda, and salt.
Cut in the cold, cubed butter using a pastry cutter until the mixture resembles coarse crumbs.
Pour in the cold buttermilk and stir until just combined. Do not overmix.
Turn the dough out onto a floured surface and gently pat it into a rectangle about 1-inch thick.
Fold the dough over itself a few times to create layers, then pat it out again to 1-inch thickness.
Use a biscuit cutter to cut out biscuits and place them on a baking sheet.
Bake for 10-12 minutes, or until golden brown.
Serve warm with butter or jam.