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 heat and sauté the onion, carrots, and celery until the onions are translucent.
Pour in the chicken broth and add the fresh thyme, bringing the mixture to a gentle simmer.
Add the chicken pieces to the pot and cook for about 5 minutes.
In a small bowl, whisk together the whole wheat flour, baking powder, and remaining sea salt and pepper.
Stir 2 tablespoons of water into the flour mixture until a thick dough forms.
Drop small spoonfuls of the dough into the simmering broth, covering the pot immediately.
Steam the dumplings for 10 minutes without lifting the lid until they are puffed and cooked through.
Ladle the chicken, vegetables, and dumplings into a bowl and serve warm.