Place slow cooker liner in slow cooker, if desired. If using an electric pressure cooker, fold top edges in before putting on lid.
Combine chicken, carrots, potatoes, corn, demi, seasoning, 1 cup of water, and ¼ tsp. salt and a pinch of pepper in slow cooker.
Turn slow cooker on to high heat. Cover, and cook until chicken reaches a minimum internal temperature of 165 degrees, 4 hours.