Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Place the chicken breast in a shallow bowl with the buttermilk and let it marinate for 15 minutes.
In a separate dish, whisk together the almond flour, arrowroot powder, garlic powder, onion powder, paprika, sea salt, and black pepper.
Remove the chicken from the buttermilk, allowing any excess to drip off, then dredge it thoroughly in the seasoned flour mixture until coated.
Place the chicken on the prepared baking sheet and lightly drizzle or spray with the extra virgin olive oil.
Bake for 20-25 minutes, flipping once halfway through, until the exterior is golden-brown and the chicken is cooked to an internal temperature of 165°F.
While the chicken bakes, bring the chicken broth to a simmer in a small saucepan over medium heat until it reduces slightly.
Remove the broth from the heat and whisk in the Greek yogurt until smooth and creamy to create the gravy.
Slice the chicken and serve immediately, drizzled with the warm gravy and garnished with freshly chopped parsley.