Preheat oven to 350°F. Line a sheet pan with parchment paper.

Place flour, baking powder, salt, and sugar in a large mixing bowl. Cut butter into 1/2 tablespoon-sized-bits and add to the flour. Using your fingertips or a pastry cutter, work the butter into the flour mixture until it resembles coarse meal. Make a well in the center of the flour and pour in all the heavy cream and the half and half.

Stir the dry ingredients into the cream and mix with a wooden spoon until dough just begins to come together into a ball. Turn dough onto a lightly floured surface and knead 2 or 3 times to form a cohesive mass. Do not overwork the dough.

Using a rolling pin, roll the dough to a 1-inch thickness. The correct thickness is the key to obtaining a stately biscuit.

Dip a 2 1/2 inch biscuit cutter in flour, then cut the dough. Repeat until all the dough has been cut. Scraps can be gathered together and re- rolled one more time.

Place the biscuits on the prepared sheet pan, leaving about 1/4 inch between them.

Brush the tops of the biscuits with 1 tablespoon of half and half and sprinkle with 1 tablespoon of sugar.

Bake for 20 minutes. Biscuits will be lightly browned on top and flaky in the center when done.