I have a german recipe for Lentil Soup. It calls for White Thyme and I have never seen that before and could not find it for sale anywhere. Is it the same as the regular thyme that you buy in the grocery store. I did a search online but couldn't really find anything except one site that said that it was actually Winter Savory which I also had never heard of. I am hoping you can tell me what I am supposed to use.