For the baklava, first boil the water with the sugar until clear. Remove from heat, add lemon juice and let cool.
Place the pastry sheets and grease the baking tray. Place 2 sheets of dough on the tray at a time, spread melted butter on top and 2 sheets again, etc.
After half of the sheets (with me there were 6) again butter on it and veteilen the nuts, again 2 dough sheets, again butter, again 2 dough sheets.
Fold the edges inwards, put butter on top again. After the last dough sheet, fold the dough sheet down (so that it is like a package).
Cut into pieces, butter again, bake at 180 °C for about 25-30 minutes. While still hot, pour the syrup over it (until it almost floats, it soaks up syrup) and let cool.