Dice the chicken breast into bite-sized pieces and finely chop the carrots, celery, and onion.
Heat the olive oil in a medium pot over medium-high heat and sear the chicken until golden brown.
Add the carrots, celery, and onion to the pot, sautéing for 5 minutes until the vegetables begin to soften.
Pour in the chicken bone broth and coconut milk, then stir in the dried thyme, sea salt, and black pepper.
Bring the mixture to a gentle simmer while you prepare the dumpling dough.
In a small bowl, whisk together the cassava flour and water with a pinch of salt until a thick, tacky dough forms.
Drop small, rounded teaspoons of the dough into the simmering broth, ensuring they are spaced apart.
Cover the pot with a tight-fitting lid and reduce heat to low, simmering for 10 to 12 minutes until the dumplings are firm and the chicken is cooked through.
Garnish with freshly chopped parsley before serving warm.