Wow! Powerful stuff!
I haven't yet tried cooked buckwheat groats, but I do use buckwheat flour. My favorite way to utilize it is in pancakes. Buckwheat flour is increasingly easy to find. I have seen it in several major grocery chains, but usually I get mine from a co-op store that sells it in bulk. It's more cost effective this way. Buckwheat flour is not white like others, but has a purple-ish or gray tinge to it, so naturally it will look different in baked goods. I enjoy its texture, which is slightly gritty and "toothsome", but not hard or chewy, and it's mild in flavor, even a little sweet.
Since buckwheat flour is not a grain flour, I think of these pancakes as "safe" food, knowing it won't have a negative effect on my blood sugar or digestion. If you like these you will also like the blueberry buckwheat cake/muffin recipe I'll share soon, which happens to taste a lot like blueberry buckwheat pancakes.