Grease the oven tray with two tablespoons of melted butter and sprinkle the tray with two tablespoons of the ground cake, then set it aside, keeping the remaining amount of butter and the ground cake.
Boil the potatoes in the water until they are soft, then drain and set aside to cool, then peel and mash them, then mix the mashed potatoes with salt, pepper and eggs, then set them aside.
Heat the oil in a saucepan and fry the onions for two minutes, then add the shredded chicken and stir over the heat for 5 minutes until it turns brown.
Add the stock cubes, pine nuts and spices, stir until all ingredients are combined, then set aside.
Spread half the amount of mashed potatoes in the previously prepared oven tray, then spread the filling over the potatoes, followed by the remaining amount of mashed potatoes on top.
Sprinkle the remaining amount of the ground cake on top and pour the remaining amount of melted butter on top.
Bake in a preheated oven for 25 minutes, until top is golden.
Remove from the oven; then serve and enjoy your potato kibbeh!