Verified answer

Do they really taste horrid? If so, ditch them. If they are edible but need some work about putting them in your blender or food processor and pulsing into fine crumbs. Mix with melted butter and some sugar and press into a pie dish and use to form a crust for a pudding or ice cream pie, even a cheesecake.

i believe that was the problem to I made these same cookies a couple days ago and they turned out great,but I didn't bake them as long as it said to

the link below has a pretty good sugar recipe too

ive done the same thing.

If they are eggy, then make a classic cream cheese frosting (with good vannila ;) ) and it masks the taste enough.

If they're really eggy, you can make a bacon frosting. I'm ery experimental, and it turned out really good. Take vannilla frosting, and add bacon and bacon grease to it. It will taste like sweet/salty eggs and bacon!

Show us your recipe, so we might be able to give advice.

I cannot imagine that vanilla is the culprit that caused the recipe to go bad,

There might be a different problem and we need more info to help.