1. Preheat oven to 400F degrees.

2. Sift together flour, baking powder, sugar, cream of tartar, baking soda and salt into a bowl.

3. Cut in the 1 stick of chilled butter until mixture resembles large coarse crumbs.

4. Make a well in the center of flour mixture; add buttermilk all at once and stir just until dough clings together.

5. Gently roll out, fold over and roll out dough about 9 times on a floured surface.

6. Pat dough out to 1/2-inch thick. Cut dough with a 2-inch biscuit cutter or glass.

7. Brush biscuit tops with 1 T melted butter.

8. Bake for 10-12 minutes until golden.