Melt the ghee in a large pot over medium heat and sauté the carrots, celery, and yellow onion until they begin to soften and become fragrant.
Stir in the dried thyme, sea salt, and black pepper, then place the chicken breast in the pot and pour in the chicken bone broth.
Bring the liquid to a gentle simmer, then reduce the heat to low, cover the pot, and cook for 10 minutes.
While the chicken simmers, whisk together the cassava flour and garlic powder in a small bowl, then stir in the water until a thick, tacky dough forms.
Remove the lid and use a small spoon to drop marble-sized portions of the dumpling dough into the simmering broth, ensuring they do not overlap.
Cover the pot tightly and steam for an additional 8 minutes until the dumplings are firm and the chicken is fully cooked through.
Carefully remove the chicken breast to a plate, shred it into bite-sized pieces with two forks, then return it to the pot and garnish with fresh parsley before serving.