Courgettes are peeled and grated. Leave some time inclined container to drain the juice. A crust is sprinkled with a little sunflower oil. On it is placed second crust, sprinkle with sunflower oil, well drained zucchini, 2-2 and 1/2 tbsp sugar, a pinch of cinnamon, 1 tsp bread crumbs and optional walnuts. Wound on a roll and put in greased pan. Once you line up all the sheets sprinkled with remaining sunflower oil. Bake in preheated oven at 200 ° C