Welcome to the club, Barbara - your membership kit should follow in the mail shortly.

I don't think I've ever tried anything with flax in it, but I don't see why it wouldn't work. The only slight problem I can imagine is maybe the flax tasting burnt on the outside of the waffle, from the direct heat that it wouldn't get in the microwave. Have you ever made a flax pancake? I'm not sure I ever had, but if that worked, the waffle iron should work, too. To avoid a mess, I would just try to keep the batter fairly thick. Maybe let it sit for a few minutes for the flax to "do its thing" and get goopy.

For cooking time, it's a pretty trustworthy rule of thumb that you cook it until the light goes out.

Let us know if you try it!