Preheat oven to 450F.
Cut the butter into cubes and set aside in the refrigerator.
In a medium sized mixing bowl, combine all of the dry ingredients (flour, baking powder, salt, and sugar).
Add in the diced butter.
Cut the butter into the flour mixture with a pastry cutter or fork. It will be ready whenever the mixture resembles coarse peas.
Add the half and half. Stir the mixture until just combined. Do not over-mix!
Roll the dough onto a floured surface into a rectangle that is about 3/4" thick.
Fold the dough onto itself 3 times. (Pictures above for reference)
Roll the dough back into a rectangle and fold 3 more times.
Form the dough back into a rectangle.
Cut the dough into pucks using a biscuit cutter or the rim of a glass cup. Place the cut biscuits into a prepared baking sheet or Cast iron pan.
Bake the biscuits for 12 - 15 minutes, or until the tops are a light golden brown.