
Cook the stew
In a large mixing bowl, stir together the stock and cornstarch until fully combined.
Place the chicken at the bottom of a 6 quart slow cooker.
Add the herbs, onion, garlic, carrots, leek, and chicken broth.
Cover the slow cooker and cook the soup on the "High" setting for 4 to 5 hours.
15 minutes before the stew is finished, mix together all of the dumpling ingredients in a large mixing bowl.
Add the peas to the stew and stir. Season with salt and pepper to taste.
Using a tablespoon, drop dollops of dumpling dough onto the top of the stew. Do not stir the dumplings into the stew.
Place the lid back onto the slow cooker and cook the stew for another hour.
Turn off the heat and allow the soup to cool for at least 15 minutes before serving.