- Make the biscuits the night before stuffing them. 
- Line a baking sheet with parchment paper and set aside. 
- In a large bowl, whisk together flour, baking powder and salt. 
- Cut the butter into ½ inch cubes, and place it in the freezer for 20 minutes so it’s extremely cold. 
- Smash the butter into the flour using a pastry cutter, two forks or your hands until the butter is evenly distributed and pea sized balls have formed. 
- Slowly stream the heavy cream into the flour and butter mixture while using a fork to evenly distribute the liquid. 
- Gently mix the flour mixture and heavy cream until a shaggy dough has formed. 
- Turn the dough out onto a lightly floured surface. 
- Knead the dough until it just comes together, and form it into a rough rectangle. 
- Roll the dough into a ½ inch thick rectangular slab. 
- Carefully fold the dough into thirds until it overlaps onto itself like a letter or trifold. 
- Gently compress the layers, then roll the dough into a rectangle that is ¾ of an inch to 1 inch thick. 
- Lightly flour the sharp end of a 4 inch round cookie cutter and punch out as many biscuits as possible and transfer to a parchment lined baking sheet. 
- Gather and reroll the scraps and punch out more biscuits until the remaining scraps can’t be rerolled, and press the last scraps into a free-form biscuit. 
- Cover the tray tightly with plastic wrap or an inverted baking tray, and store in the fridge overnight. 
- The next morning, cook the sausage over medium-high heat until browned and crispy, and transfer to a paper towel lined plate; drain any excess fat and let cool completely. 
- Whisk the eggs until the yolks and whites are homogenous, and scramble over medium-low heat with 1-2 tablespoons of butter until the eggs have reached a soft to medium scramble. 
- Season the eggs with a pinch of salt and black pepper to taste, and transfer to a plate to cool completely. 
- Preheat the oven to 400F. 
- Once the eggs and sausage have completely cooled, remove the biscuit tray from the fridge. 
- Working quickly, but carefully, elongate and flatten the biscuits by pinching the sides while turning them in your hand. 
- Place 1 tablespoon of cheddar in the middle of a biscuit, followed by 2 tablespoons of eggs and 1 tablespoon of sausage, then top with 1 more tablespoon of cheddar. 
- Bring the edges of the biscuit together, and close the biscuit by pinching the dough until the filling is completely encased in the biscuit. 
- Place the biscuit seam side down on the baking sheet and repeat with the rest of the biscuits. 
- Transfer the biscuit tray to the freezer and let them rest for 20 minutes to firm up the butter. 
- Brush the biscuits with heavy cream, and optionally, sprinkle with flaky salt. 
- Bake for 15-20 minutes or until the biscuit tops are golden brown. 
- Transfer to a wire rack and let cool for 5 minutes, then serve and enjoy!