Dice the chicken breast into bite-sized pieces and season with a pinch of sea salt and black pepper.
Heat the olive oil in a medium pot over medium heat. Add the diced onion, carrots, and celery, sautéing for 5 minutes until softened.
Add the chicken pieces to the pot and cook until lightly browned on all sides.
Pour in the chicken broth and add the dried thyme. Bring the mixture to a gentle boil, then reduce heat to low and simmer for 10 minutes.
In a small bowl, whisk together the white whole wheat flour, baking powder, and the remaining salt and pepper.
Stir in the unsweetened almond milk into the flour mixture until a soft dough forms.
Drop small spoonfuls of the dough into the simmering broth. Cover the pot tightly with a lid.
Cook for 10-12 minutes without lifting the lid to ensure the dumplings steam and become fluffy.
Ladle the chicken and dumplings into a bowl and garnish with fresh chopped parsley.