Homemade Chicken Dumpling Soup with Fluffy Dumplings in Creamy Broth

Ingredients

• 1 ½ pounds boneless, skinless chicken breasts
• 1 ½ teaspoons salt, divided
• ¾ teaspoon black pepper, divided
• 1 tablespoon avocado oil
• 4 tablespoons salted butter
• 1 small sweet onion, finely diced
• 3 medium carrots, peeled and cut into ½-inch slices
• 3 celery ribs, diced
• 4 garlic cloves, finely minced
• ⅓ cup all-purpose flour
• 4 cups chicken broth, divided
• 2 cups water, divided
• 1 tablespoon Better Than Bouillon chicken flavor
• ½ teaspoon dried thyme
• ½ teaspoon dried rosemary
• ½ teaspoon dried basil
• ½ teaspoon dried tarragon
• ½ teaspoon dried sage
• 1 cup whole milk
• 1 cup frozen peas
• 1 ¾ cups all-purpose flour
• 2 teaspoons baking powder
• ½ teaspoon baking soda
• ½ teaspoon garlic powder
• 1 teaspoon salt
• ¼ teaspoon black pepper
• ¾ cup whole milk
• 4 tablespoons salted butter, melted
• ¼ cup sour cream
• Fresh thyme leaves (optional)
• Fresh flat-leaf parsley, finely chopped (optional)