I had this yogurt drink (Dour) a few weeks ago at the Iranian restaurant I wrote about. Once back home we started making this a few time a week. If you like salty yogurt than this is the drink for you!
1/2 cup plan think Greek yogurt (or use 1 cup plan yogurt)
1/2 tsp salt
stir in 2 cups of water little by little. The drink should look like milk. Add some ice and drink up!