Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness.
In a shallow bowl, submerge the chicken in buttermilk and let it soak for at least 15 minutes.
In a separate shallow dish, whisk together the almond flour, arrowroot powder, garlic powder, onion powder, smoked paprika, sea salt, and black pepper.
Remove the chicken from the buttermilk, allowing excess to drip off, then dredge thoroughly in the flour mixture, pressing it into the meat to adhere.
Heat the avocado oil in a large skillet over medium heat. Once hot, add the chicken and cook for 5-6 minutes per side until the crust is golden and the internal temperature reaches 165°F.
Remove the chicken from the pan and set aside to rest. To the same pan, whisk in the bone broth and heavy cream, scraping up any browned bits.
Simmer the sauce for 2-3 minutes until thickened into a creamy gravy, then stir in the fresh parsley.
Slice the chicken and ladle the warm gravy over the top before serving.