Sift the first 5 ingredients together
Using a grating disk in a food processor, quickly grate the butter into strips. Add the butter strips to the flour mixture and toss trying to keep each butter strip separate.
Add buttermilk
Mix in the buttermilk without destroying the strands of butter. Toss onto a well floured work surface
Shape into a rectangle and roll out to about 9" x 12:
Fold, roll, and turn 5 times.
Cover dough and refrigerate for at least 30 minutes.
Roll dough to desired size and cut with a sharp knife or biscuit cutter.
Do not use uncut edges of the dough as they won't rise the same as cut edges making lopsided biscuit.
Paint tops of each raw biscuit with melted butter before baking.
Bake in a preheated 400 degree oven till golden brown.