1. In a large bowl, mix the flour, baking powder, salt, thyme, and parsley. Cut in the butter with a fork or pastry blender until the mixture resembles coarse crumbs.
2. Stir in the milk gradually, mixing with a fork until a soft dough forms.
3. Flour a clean work surface heavily. Roll out the dough to a thin sheet using a floured rolling pin. Cut into squares approximately 2×2 inches using a pizza cutter or knife.
4. Place the dumplings on a floured plate, separating layers with flour to prevent sticking.
5. Bring the chicken broth to a boil in a large pot. Carefully add the dumplings one by one, stirring gently to prevent them from sticking together.
6. Cook the dumplings for 15 to 20 minutes, ensuring they are fully cooked and no longer doughy.
7. Add the shredded chicken tenderloin to the pot and stir to combine. Cook until the chicken is heated through.
8. Serve hot and enjoy the flavors of home-cooked goodness.