Pre-heat the oven to 350 degrees F. Prepare a baking sheet with parchment paper or silicon baking mat.
Combine almond flour, baking powder and salt in a large bowl.
Add the cubes of cold butter to the bowl and cut the butter into the flour using a pastry cutter or fork. Combine until the mixture is in gravel-sized pieces.
Whisk the egg white in a separate bowl, then add it to the flour mixture. Stir until fully combined. It will still be a bit lumpy.
Using your hands or a spoon, scoop out enough dough to form a biscuit. Place it on the baking sheet. Continue until you've formed all of the biscuits. Make sure to space them apart so they have room to grow while baking.
Bake for 12-15 minutes. Baking time will vary. When the biscuits are a nice golden color, they are ready.
While the biscuit are baking, prepare the gravy. Start by browning the ground sausage in a large skillet over medium-high heat. Break the sausage into small pieces as it browns. When the meat is cooked through, add the butter and almond flour to the pan and whisk it.
Add the heavy cream and water and whisk constantly until well combined. Season with salt and pepper, to taste. Turn the heat down to medium low and cook for 3-5 minutes, until thickened.
When the biscuits are done, take the from the oven. Cover them with gravy and serve.