Start by preparing all your ingredients: chop the carrots, onion, and celery into similar-sized pieces to ensure even cooking. Cut the chicken thighs into large chunks and set everything aside.
Heat a tablespoon of olive oil in a skillet over medium heat. Add the chicken chunks and sear for 3-4 minutes, just until they develop a light golden color. This step adds extra flavor but is optional—skip it if you're in a hurry.
Transfer the seared chicken to the bottom of your slow cooker. Layer the chopped carrots, onion, and celery on top of the chicken, spreading them out evenly.
Pour the vegetable broth over the ingredients in the slow cooker, ensuring everything is submerged. Add the sprigs of thyme and bay leaves on top for aromatic flavor infusion.
Cover the slow cooker with its lid, set it to low, and let it cook for about 6 hours. During this time, your kitchen will fill with a warm, savory aroma, and the chicken will become tender and easy to shred.
Once the cooking time is up, remove the bay leaves and thyme sprigs. Check the seasoning—add salt and pepper to taste, stirring gently to combine the flavors.
Garnish the stew with freshly chopped parsley for a burst of color and fresh flavor. Serve hot in bowls, enjoying the comforting aroma and tender bites of chicken and vegetables.