I dont think you can buy it in a supermarket. You have to get it from a person who owns camels. Either thru a Qatari who owns camels, or while you drive thru the country and see a hurd of camels and ask the camel herder to give you some. Also Shahaniya is the ear where most camels are, so go on a trip there and start talking with some of the people there. Most Qataries are very willing to give you a taste.