Whisk together the dry ingredients.
Position a box grater in the flour mixture and grate half the butter then toss gently in with butter. Repeat with the last half.
With a pastry blender, combine further until mixture has the appearance of small lumps throughout. As an alternative, you may use your hands to rub butter into flour to yield similar results.
Make a well in the center and pour in 3/4 cup of heavy cream(minus 1 T to brush biscuits before baking). Stir gently with a wooden spoon until mixture begins to come together. Knead mixture within the bowl to gather any loose bits, then turn out onto a lightly floured board.
Roll dough to a height of 3/4". Cut with a 2" biscuit cutter, either square or round. Reroll scraps to obtain a few more biscuits.
Place biscuits onto a parchment paper-lined baking sheet. Brush the tops with the reserved tablespoon of heavy cream. Place pan into refrigerator while you preheat the oven to 400° F. Bake for 17-20 minutes or until lightly golden on top.