Creating Cozy One-Pot Chicken Stew with Fluffy Sourdough Dumplings is easy when you follow these steps:

1. Sauté the Chicken: In a large pot, heat olive oil over medium heat. Season the chicken thighs with salt and pepper. Add them to the pot and cook until browned on both sides, about 5-7 minutes. Remove chicken and set aside.

2. Cook the Vegetables: In the same pot, add onions, carrots, and celery. Sauté for about 5 minutes until the vegetables begin to soften. Add minced garlic, thyme, and rosemary, cooking for an additional minute.

3. Simmer the Stew: Return the chicken to the pot and pour in the chicken broth. Bring to a boil, then reduce heat and let it simmer for about 30 minutes, or until the chicken is cooked through and tender.

4. Prepare Dumpling Batter: In a mixing bowl, combine flour, baking powder, and salt. Add the sourdough starter and milk, mixing until just combined. Do not overmix; a few lumps are fine.

5. Make Dumplings: After the chicken is cooked, drop spoonfuls of the dumpling batter onto the surface of the stew. Cover the pot and let the dumplings steam in the broth for about 15 minutes.

6. Check for Doneness: After 15 minutes, check the dumplings for doneness; they should be fluffy and cooked through. If needed, cover and cook for an additional few minutes.

7. Garnish and Serve: Once the dumplings are cooked, remove the pot from heat. Serve the stew hot, garnished with fresh parsley for an added touch of flavor and color.