Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness.
Submerge the chicken in buttermilk in a shallow dish and let marinate for at least 15 minutes.
In a separate bowl, whisk together the almond flour, smoked paprika, garlic powder, sea salt, and black pepper.
Remove the chicken from the buttermilk, letting excess drip off, then dredge thoroughly in the almond flour mixture.
Heat avocado oil in a large skillet over medium heat and pan-fry the chicken until golden brown and cooked through, about 5-6 minutes per side.
Remove the chicken to a plate. In the same skillet, whisk the chicken bone broth and arrowroot powder together.
Simmer the sauce over medium-low heat until it thickens into a creamy gravy, then stir in the fresh thyme.
Drizzle the warm gravy over the crispy chicken and serve immediately.