Waffel recipe

After some awful experience with an OBH Nordica electric waffle maker (one waffle took about 12 minutes and still was not entirely done), I have bought a cast-iron waffel maker from Skeppshult. After burning it in and several unsuccesfull attempts, I actually manged to make some waffles. However, I have not yet tried to use it over an open fire, but that was actually the idea when I bought it. I used it on our electric oven and one waffle takes about 4 minutes (on position 7-8 out of 9).