We made Gesminus this evening at home.
It's a typical sardinian sweet, very similar to meringues, so it's very easy to make. The difference is that they're full of almonds and the recipe requires orange flower water.
I read that their name derives from the jasmine: in the past they used the jasemine's essence to confection them, then replaced with the orange flower water.
This is the photo of the magazine in which we found the recipe: