I made this recipe exactly, without making any changes, and the cookies turned out wonderfully! They were a little difficult to get off the spatula, and would fall apart if you tried too hard to get them to come off on their own. (I only have one cookie sheet, so I don't have time between batches to wait for the cookies to cool on the sheet) I found that using a second spatula to push the cookie off the first spatula used to get the cookie off the baking sheet worked well enough. After cooling for a few minutes on waxed paper they held together just fine. I store my cookies in air tight containers with a piece of bread to keep them soft. :)

I made a half batch, didn't have quite enough mayo, but added in a bit of ranch dressing and it was still fine. I omitted the red onion and parsely, and used regular table salt instead of celery salt. Still very good and I will make again!

This was completely experimental, and usually my experiments do not live up to my expectations, but this was great! And my boyfriend liked it too, and he can be hard to please!