Place a mixing bowl in the freezer ahead of time to ensure your ingredients remain cool while you are working.
Preheat the oven to 400° and line a baking sheet with parchment paper
Sift and combine all of the dry ingredients in your chilled bowl. Place the bowl in the fridge.
Use a knife to cut up the butter into pea-sized pieces and stir them into the dry ingredients. Place the bowl back in the fridge.
In another bowl combine 2 egg whites and lightly beat them. Add the heavy cream to the egg whites.
Incorporate the cheddar cheese into the dry ingredients, but reserve a small amount to sprinkle on the top of the biscuits.
Add the wet ingredients to the dry ingredients and mix until well combined.
Form the dough into a log and place it on parchment paper. Place your dough in the freezer and chill for a minimum of 20 minutes.
Remove the dough from the freezer. Cut 8 equal discs and place them on a lined baking sheet. Sprinkle the remaining cheese on top of each biscuit.
Bake for 12-13 minutes until golden.