There are two main types of frosting: unopened and opened. If your frosting is still unopened, it's likely to be safe to use for a few months after the expiration date, as long as it's been stored in a cool, dry place. But, if you've already opened the frosting, it's a different story - bacteria can grow and make the frosting go bad faster.
Now, you might be wondering, what's the worst that could happen if you use expired frosting? Well, it's not like it's going to poison you or anything (although, let's be real, it's not exactly appetizing either). The worst that could happen is that your frosting might be a little off, taste-wise - it might be too runny or have a funny texture.
But, here's the thing: Betty Crocker itself says that their frosting is safe to use for a few months after the expiration date, as long as it's been stored properly. So, if you're feeling adventurous and want to use that old frosting, just make sure to give it a good sniff and a quick taste before using it - if it smells or tastes funny, it's best to err on the side of caution and throw it away.
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