Safari cookies will not delete

Try deleting the cookies plist from Home/library/Cookies.

I've just noticed the same thing. Why do the cookies come back? I don't want to resort to going to my libraries directory just to delete cookies. And does that truly solve the issue?

I was having the same problem with cookies returning, no matter what I did. Finally on another thread I read those magic words Applications>Utilities>Disk Utility: Repair Permissions. Why didn't I think of that, except that Apple says it's not typically necessary. Permissions have been repaired and my cookies are back under my control. It was such a simple fix.

There's MacTuneup - it seems to be a good supplementary toolbox to the standard maintenance apps. It cleaned some cache files that Safari's reset or clean cache options ignore in my case.

I have called Apple Care 5 times about this problem. My cookies re-appear within 1 hour of my deleting them. At first it started when i would delete 20 cookies...and 5 would re-appear. I had NOT re-visited those 5 sites. Now i can delete all the cookies and they will all re-appear. The support tech at Apple Care said that she had never cleaned out her cookies before. She was shocked when they all re-appeared while we were talking. She had me Reset Safari. Didn't work. They had me re-download Safari 4. Didn't help.
I was able to successfully delete cookies for 12 months before this "glitch" started. This is a recent problem. Apple has been very nice but they don't treat cookies as a very important problem. Most people never clean out their cookies ever. I clean them out every night. I don't want anyone "tracking" me. Even if i didn't care about tracking, i don't want those cookies on my computer.
I do keep cookies for sites i use often so that i don't have to "sign-in" every time i visit.