In a large bowl, add the bread flour, baking powder, and salt. Stir those ingredients in well together with a fork. Add in the cubes of butter. Then use either your pastry cutter or your clean hands to work your butter into your flour.  Basically you squeeze those pieces of butter with your thumb and index finger into the flour and just keep squeezing until you don't feel any more big pieces of butter in the flour mixture. However, you still want to have nice pea size chunks of butter, so don't get carried away. You also want to keep in mind that you still want your butter to be cold and the more you handle it, the warmer it will get. :)

Now pour your buttermilk into the bowl and stir with a silicone spatula. It will be thick, but you want to make sure the buttermilk is just worked into the flour and basically forms to a semi dry/sticky mixture. Then turn this mixture out onto a floured surface. Dust your hands with flour and sprinkle a dusting of flour onto the dough.

Begin to form a rectangle (roughly 1-inch thick) with your hands. If the dough still feels too sticky then add just a little more flour. Once you have your rectangle, then fold one side over and press it down some and begin to form a rectangle again. This is the folds or layers that I spoke about earlier. Do this at least two more times, remembering to add a little more flour if the dough sticks.

Now take your biscuit cutter (dust with a little flour) and cut out your biscuits. Again, don't worry about them being perfect. It's ok, if they are not. Place each onto the center of your baking sheet. I always suggest lining them up touching. They seem to rise bigger and taller that way, in my opinion. Now pour a little buttermilk into the measuring cup that you just used and lightly brush the tops with a little buttermilk. This will help make them a golden brownish color.

Depending on your oven, place the baking sheet on the top third rack in your oven and bake for 15 to 20 minutes or until the tops are golden brown. Once done, allow to cool slightly and then enjoy.