Arrange the phyllo pastry sheets on top of one another. When you arrange 2-3 sheets, put walnut filling.
Arrange the rest of the sheets, cut the baklava with a sharp knife into triangles, squares or rhombuses.
Pour boiling oil over it evenly and bake until reddened.
Once baked and then cooled, pour the cool syrup (after boiling syrup about 10 min.) over it. Be sure to add citric acid or lemon the syrup, so that the baklava doesn't get caramelized.