"Non mangio la farfalla."
It would be great to have an alternative if your audio stops working. This has happened to me a couple of times and I have no option but to lose hearts even though I can't hear the target.
farfalla is a type of "pasta", which is more appropriate in this context.
I think you're thinking of 'farfalle', or "bow-tie pasta". It's an easy mistake to make, especially since the name comes from butterfly (according to the wikipedia article).