Here is the sentence:
Dennis tried to be thoughtful and generous, yet Malinda refused to give
him not only a
kiss good night but also
a single chocolate from the nut and caramel
sampler.
When you use not only ... but also, you must maintain parallel structure. A kiss good night, a noun phrase, follows not only, so a single chocolate, another noun phrase, is all that must come after but also. Nice choice!