Dice the chicken breast into bite-sized pieces and finely chop the onion, carrots, and celery.
Melt the ghee in a medium pot over medium-high heat.
Add the onion, carrots, and celery to the pot and sauté for 5 minutes until the vegetables begin to soften.
Stir in the chicken and minced garlic, cooking for 3 minutes until the chicken is opaque on the outside.
Pour in the chicken bone broth, dried thyme, sea salt, and black pepper, then bring the mixture to a gentle boil.
While the broth heats, whisk the cassava flour and egg together in a small bowl until a thick, sticky dough forms.
Reduce the heat to low and use a small spoon to drop golf-ball-sized portions of the dough into the simmering liquid.
Cover the pot with a tight-fitting lid and steam for 12 minutes without lifting the lid to ensure the dumplings become light and airy.
Ladle the soup and dumplings into a bowl and garnish with fresh chopped parsley before serving.