2 3/4cupsall-purpose flour (set aside 1/4 cup for dusting surface)
4tspbaking powder
1 1/2tspbaking soda
1 1/2tspsalt
1stickcold butter
1cupbuttermilk, plus more for brushing top
Instructions
Preheat oven to 450 degrees F.
In the bowl of a stand mixer (or using a large bowl and electric hand mixer), mix the flour, baking powder, baking soda, and salt. Cut the butter into small pieces (about the size of your fingernail). Add the butter, mixing on low until you see pea-sized clumps form.
Pour in the buttermilk, mixing just until a shaggy dough forms. If it's too dry, add in more buttermilk, one tablespoon at a time.
Dust a clean tabletop and your hands with flour, so it's easy to work with the dough. Fold and press the dough into a 6" x 9" rectangle. Gently pat the dough, folding it in half, and then in half again. Pat the dough out, until it's about 1" thick, forming it back into a 6" x 9" rectangle. Use a knife to cut the dough into a grid, forming 6 square pieces. Move the biscuits to an ungreased baking sheet, brush the tops with buttermilk, and bake for about 11-12 minutes, or until the biscuits have risen, are fluffy, and the tops are lightly golden.