In a large bowl, combine flour, baking powder, baking soda and salt.

Using a pastry blender, fork, or two knives, cut in butter till fine and crumbly.

Make a well in the middle and pour in buttermilk.

Use a spatula till moistened.

Shape into a rectangle.

Mixture may be a little crumbly, but that is okay.

Fold into thirds, like a business letter.

Turn the dough 1/4 turn and fold into thirds.

Turn the dough 1/4 turn and fold into thirds again.

Roll dough out on a lightly floured board to 3/4 thickness.

Using a 2 1/2 cutter, push straight down; dont twist.

Put biscuits on an ungreased baking sheet or Silicone baking mat.

Press the middles of the biscuits with your thumb to help them rise straight.

Brush the tops with buttermilk.

Bake in a 425 degrees F oven for 1215 minutes.