Meanwhile, in a container mix, water with corn starch.
When the meal has reached the boiling point add the corn starch, go back to the boil and boil for 3 minutes, stirring constantly.
Grease each sheet of pie with melted butter, half of the surface is added at times the filling of cherry, sprinkle with halva, roll and transfer to a 30 cm diameter tray, continue with the rest of the ingredients until we finish them,
Grease the surface with beaten egg and bake at temperature 170 C, until browned (about 45-50 minutes).
