Dice the chicken breast into bite-sized pieces and season with a pinch of sea salt and black pepper.
Heat the ghee in a medium pot over medium-high heat. Add the chicken and cook until browned on all sides, then remove and set aside.
In the same pot, add the diced onion, carrots, and celery. Sauté for 5-6 minutes until the vegetables begin to soften.
Return the chicken to the pot and pour in the chicken bone broth, remaining sea salt, black pepper, and dried thyme. Bring the mixture to a gentle boil.
While the soup is heating, prepare the dumpling dough by whisking the flour and baking powder in a small bowl.
Stir in the Greek yogurt and chopped fresh parsley until a thick, sticky dough forms.
Reduce the heat to a low simmer. Use a small spoon to drop 6-8 small dollops of dough directly onto the surface of the simmering liquid.
Cover the pot with a tight-fitting lid and steam for 10-12 minutes without lifting the lid, ensuring the dumplings are cooked through and fluffy.
Ladle the soup and dumplings into a bowl and serve immediately.