Place cheese in a small bowl and cover with warm water to remove its saltiness. Let soak for 30 minutes. Drain. Using your hands, squeeze cheese to remove any excess moisture. Set aside.
In a saucepan over medium heat, boil water with sugar. Gradually add semolina flour, stirring constantly with wooden spoon. Add rose water. Add Akkawi and string cheese. Stir until dough is soft and well combined. Let cool.
Roll out dough between two sheets of plastic wrap to a thickness of about 1cm (½in). Remove plastic wrap and cut dough into 10cm (4inch) squares or rectangles. Place a spoonful of cream onto center of each square, then roll into a cylinder.
Arrange halva on serving plate, and drizzle some syrup on top. Garnish with rose petal jam and pistachios.
CHEF NOTES
Akkawi Cheese can be found in Mediterranean stores.