Lemongrass

A sauce made from lemongrass leaves, ginger root, and a frozen chive flower, all crushed together, then covered with warmed sesame seed oil was pretty good. It probably needed either more lemongrass or an actual shallot, or maybe not to pre-heat the oil so the ginger would be sharper.

Probably lemongrass makes for a good tea (or herbal infusion or vegetable soup, if you prefer) unless you're allergic or otherwise cannot partake. It is probably not a morning tea.

Drying the leaves can be tricky; ideally you would have a low humidity, high wind velocity, moderate heat location to dry things, such as the warm aisle in a server room. Such aisles were also good for drying out wet clothes from the walk into work. Lacking such, the leaves are pretty good at retaining moisture, so ideally will need to be broken up into smaller bits, and even some of those will not dry out well in a dehydrator. Maybe this is less of a problem in low humidity, low mold locations? A final dry might be to keep the leaf bits spread out on a cookie sheet so that fewer damp bits can clump together, or you can check on the results over the subsequent hours or days to see if there is any moisture remaining. Maybe a humidity probe would help here? Or to have more experience drying things, more than a few times per year…

(Freezing the chive flowers seemed a good idea at the time. They might be very decorative, but not if you mortar them into a paste.)