I had this dish both in Yazd and Shiraz, and adapted the recipe from one by Farangis Shahab. I have also tasted this custard in various regions flavored with pomegranate or grape juice, which you can do here by replacing the water with fruit juice.
Dissolve the starch in 6cups/1.4l water and allow to sit for 5 minutes. Pass it through a sieve into a medium-sized heavy-bottomed saucepan, then bring to a boil over low heat, st