At some traditional markets there is a Hakka stand selling glutinous rice cakes, both sweet and savoury. The one I am currently eating appears to have a pounded green herb/weed mixed into the glutinous rice. It gives the glutinous rice cake an almost dark olive green colour. It has quite a grassy taste. You can see fragments of the original herb in the glutinous rice cake. I have in the past had both sweet and savoury versions of this green coloured glutinous rice gui.
Can anyone tell me what the actual herb is inside the green Hakka gui?
Thanks for your time.