The sweet, milky sap found on the angebin plant is associated with manna, a food mentioned in the religious texts of the Abrahamic religions. Its ingredients including pistachio or almond kernels, rosewater and egg white.
Depending on the ingredients mixed in, gaz can have a subtle rose flavor, a nutty taste, or a savory and pungent profile. It can be white, or it can become another color because of the addition of spices (such as saffron) or nuts.

Everyone knows Isfahan by this sweet. there are Normally 3 types: Pistachio one, Almond one & the mixed one. There are differences in the percentages of nuts. When you visit Isfahan, make sure to try Gaz.