What does it mean for the adjective "to-die-for"

Today I am reading a essay about beaf steaks.  I don't know what is the meaning

for the following sentence:

 The steaks – and the to-die-for sides are perfect.

What does it mean for the adj "to-die-for"? does it means "wonderful", pls settle my mystery.

Thank you.

http://www.englishbaby.com/forum/AskEnglish/thread/199385

You should ask this qestion in that thread!

It means the food was so good that you would gladly die, if that was the only way to enjoy the food

Ah, one Canadian with attitude and one very helpful Canadian. Nice explanation Wayne.