Dissolve the Knorr Chicken Stock pot in the boiling water. Set aside.
Heat the Stork Margarine in a large casserole dish. Add the onion, carrot, celery and cook for 10 minutes on medium-low heat, until vegetables have softened. Add the garlic and cook for another 3-4 minutes. Remove all vegetables from the pan and set aside.
Add the vegetable oil to the casserole dish and heat. Add the chicken and cook for 5 minutes on medium heat until the chicken browns. Turn the chicken over and cook for another 5 minutes. Add the vegetables from earlier back to the dish along with the leek, thyme, bay leaf and the chicken stock. Bring to a gentle boil, cover with a lid and cook for 35-40 minutes.
For the dumplings:
Dissolve the Knorr Chicken Stock Pot in the boiling water. Set aside to cool.
Place flour in a bowl, add the melted Stork Margarine and mix well. Add the chicken stock and mix in gently (do not overwork).
Add the Robertsons Cumin, parsley and chives. Take tablespoons of the mix, roll into small balls with your hands and drop into the simmering chicken casserole. Poach for 5-10 minutes with the lid on just before serving.