It's a proper thing. I thought for a second it was a made-up word and thought how beautiful that is. Then I looked it up, it's what in Romanian we call leuștean and yes, I've used it in soups and pots of various breeds often. But it doesn't sound nearly as lovely. This recipe, however, does. It's rainy, grim here and I'm loving the day. Just realized I'd love it even more with hot creamy soup. So I'm going out.
(Or maybe it's just that nice, crisp bit of bread on the side that's playing havoc with my brain)
Will let you know how it goes anyway.