Buttermilk Biscuits Take 1

2 cups unbleached all-purpose flour, plus more for dusting the board (if you can get White Lily flour, your biscuits will be even better)
1/4 teaspoon baking soda
1 tablespoon baking powder (use one without aluminum)
1 teaspoon kosher salt or 1 teaspoon salt
6 tablespoons unsalted butter, very cold
1 cup buttermilk (approx)