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 heat, then sauté the onion, carrots, and celery for 5 minutes until softened.
Add the chicken pieces to the pot and cook for 3 minutes until the exterior is no longer pink.
Pour in the chicken bone broth and add the dried thyme, sea salt, and black pepper, bringing the mixture to a gentle simmer.
In a small bowl, whisk together the almond flour, tapioca starch, and baking powder.
Stir the egg white into the dry ingredients until a thick, sticky dough forms.
Using a teaspoon, drop small mounds of the dough onto the surface of the simmering soup.
Cover the pot with a tight-fitting lid and reduce heat to low, steaming for 8 to 10 minutes until the dumplings are firm and the chicken is fully cooked.
Ladle the creamy soup and dumplings into a bowl and serve immediately.