Butterfly the chicken breast and pound it thin to tenderize it and cook evenly
Heat avocado oil in a skillet over medium heat. Season chicken lightly with salt and turmeric. Sear 3–4 minutes per side until golden and cooked through. Remove and set aside.
In the same pan, add bone broth, lemon juice, and zest. Scrape up the browned bits from the bottom for extra flavor. Simmer 2–3 minutes.
In a small bowl, mix tapioca flour with 2 tablespoons of water to form a slurry. Slowly pour into the simmering sauce while stirring. Keep stirring until slightly thickened.
Add the chicken back to the pan with the capers and simmer another 2–3 minutes, spooning sauce over the top. Garnish with chopped parsley or thyme.