I had never heard of macarons before I watched the Great British Bake-off. I only knew once I saw them that I HAD to try making them.
If you are looking for seeds, Seeds from Italy is a place I would check out. They are a family-owned company distributing seeds from a family-owned company in Italy, which has been selling seeds for 229 years. That is the kind of history and story that I enjoy reading about and supporting.