I don't know where you can find it - but Charmaine Solomon's cook book Asian Cooking (not sure of title)
has recipe for sanwin makin.
I think Pathein Halwa (halva)is made from glutinous rice powder, water, oil, sugar or cane sugar (brown) and a whole lot of stirring,topped with roasted poppy seeds
try looking for recipes for mohn ka lar mair(Portuguese dohl dohl) on line -
sorry not be to of more help.
Kaung.
