Sprout the buckwheat. Here's a very simple explanation of how to do it: Soak buckwheat overnight in a bowl of water. In the morning, put the buckwheat in a colander, and rinse it very, very well with cold water (buckwheat emits a mucilage, much like flax seeds when they get wet, so if you don't rinse well enough, they get goopy and smell very off- make sure to shake them around while rinsing to do a thorough job each time). Set the colander in or over a bowl, cover it with a towel and set it aside. Before you go to bed, rinse very well again, and cover overnight. Continue to rinse at least twice a day until it has short sprouts- around 1/2 cm (maybe a 1/4 of an inch or a little shorter?). It usually take 2-3 days.