Ali has I believe... It should say in her diary thread somewhere how she's made it (I think I asked once!)
Hopefully she may see this and let you know too
I make a raw buckwheat porridge and love it. You soak the buckwheat overnight in water, then drain and rinse. Add it to a blender with whatever fruit you like. I usually use frozen berries and banana, plus a bit of milk. Blend until coarse. It's very nutritious