How to cook
Beat the yoghurt with the baking soda and sugar and leave it for half an hour. Add the oil, vanilla and flour to the effervescent yoghurt. Stir until you get a smooth homogeneous mass.
Put the mixture into a pre-greased form. Sprinkle it with the chopped Turkish delight and chopped walnuts. Bake in a preheated moderate oven until ready.
After removing, sprinkle it with powdered sugar.