How NOT to make waffle cookies

I was looking through old photos and I came across the photo of the baking fail. Not sure what went wrong.

This is what the cookies were suppose to look like.

It all started with my husband seeing this post on making cookies in the waffle iron. It looked cool and easy. We had a tub of white chocolate cookie dough in the fridge so it would be easy to try.
We sprayed the iron with cooking spray and put in scoops of dough and waited. Then we opened the iron and it was a mess. The cookie was stuck all over. Not sure what happened but it wasn't as easy as it looked.

I've seen a few other ideas lately using the waffle iron to cook but I'm now nervous - maybe we just need more cooking spray.