I assume this is an official rice krispy treat bar and not a knock off.

I assume it's still sealed.


Personally I follow expiration dates religiously. I won't drink milk a day after it expires. I wouldn't eat that bar.

However, when high, chances are that bar will taste damn good. I assume you're high.

If you weren't high, I doubt this would be a concern.

So, if that is the case, eat it. Otherwise leave it.