01 -
Arrange the chicken thighs, carrots, celery, and onion evenly in the bowl of a slow cooker.
02 -
In a mixing bowl, whisk together chicken stock, au jus mix, chicken gravy mix, garlic powder, onion powder, and black pepper until fully combined and smooth.
03 -
Pour the sauce evenly over the chicken and vegetables in the slow cooker to ensure even coverage.
04 -
Cover with the lid and cook on low for 6 hours, or on high for 4 hours, until the chicken and vegetables are fork-tender.
05 -
Optionally, garnish with chopped fresh parsley for colour. Portion onto plates and serve warm.