Gaz (candy)
Gaz is an Iranian nougat that originated in the Isfahan region. It is widely known as Persian Nougat in American and European countries. It is made from egg whites, sugar, pistachios and/or almonds, rosewater, and psyllid honeydew collected from Persian manna. It has a mild laxative effect, traditionally used for children.
Name
The Persian word is a clipping of gaz-angobīn, in reference to tamarisk and astragalus shrubs native to the Zagros Mountains located to the west of Isfahan. Gaz was traditionally understood as the sap of the Persian manna Astragalus brachycalyx, sometimes further mistaken by its shared Persian name with the tamarisk Tamarix gallica.History
Similar confections known as halva have been made in Persia since around the 9th century Saffarid period.The modern form of gaz dates backs 450 years to the Safavid period, the honeydew found on Persian manna being combined with egg white, sugar, glucose syrup, rosewater, and pistachios and/or almonds in traditional and industrial workshops. The sweet, milky honey found on the gaz plant is associated with manna, a food mentioned in the religious texts of the Abrahamic religions. Under Qajar rule, gaz was provided by local magnates as a gift to Persian and Ottoman officials.
Manufacture and style
A large bush, the Persian manna reaches a height of about 1 meter and it usually grows in good weather in the Khansar. The hard pods of this shrub become ready to harvest around September and the gray or shiny yellow grains come out in the stems like millet. At this time, the owners of the trees must harvest them before the autumnal rains. Under the traditional cultivation prevailing in the 1950s, each bush yielded about of raw gaz with Iran's annual production averaging about. By 2017, industrialization had raised this level to.Although originally believed to be sap manufactured by the Persian manna shrub or tamarisk tree, the sticky white substance was found to be formed from honeydew, which is exuded from the anus of the nymph of the plant lice Cyamophila astragalicola in its final instar. The honeydew is collected annually and combined with other ingredients including pistachio or almond kernels, rosewater, and egg white. Modern versions of gaz frequently use sugar, glucose, and corn syrup as substitutes for psyllid manna.
The traditional way to serve gaz is in round pieces that are about in diameter and up to thick. A modern presentation is to serve the nougat cut into smaller rectangles. Pieces may be dusted with flour or cornflour to keep them separated and easier to handle. Depending on the added ingredients, gaz can have a subtle rose flavor, a nutty taste, or a savory and pungent profile, and it can be white or another color due to the addition of nuts or of spices such as saffron.