This is a great recipe. It doesn't take long to make, and can be made with left overs and vegies that would normally be discarded. The other good thing about this recipe is that people with Celiac Disease (Gluten Intolerance) can eat it as this pie uses potato for the crust instead of pastry.
We usually buy a pre-cooked BBQ chicken and eat the white meat. Then the rest of the bird gets chucked in a big pot and boiled for about 45 minutes. Once cooled, the meat is pulled off and the bones, skin and cartilage is thrown away. Start with about 1 litre of water boil it down until you have about 200mL left. The liquid that is left behind will thicken and is what makes this luscious.