Is there a single word meaning "the thing that attracts me"?
The terms attractor or drawer don't feel right:
The attractor for me at this restaurant is their sumptuous ravioli.
The allure for me at this restaurant is their sumptuous ravioli.
The power to attract; enticement.
The appeal maybe? "To me, the appeal of this restaurant is their sumptuous ravioli."
From Cambridge Dictionary: "the quality in someone or something that makes him, her, or it attractive or interesting:"
I think you're going for "attraction" which is the noun form of attract. But the sentence is still a little stilted. "Draw" would be nice - "The draw for me at this restaurant is the sumptuous ravioli."
Enticing? It may be worth using a thesaurus here to get a list of suitable words.
I was enticed to the restaurant by their delicious ravioli.
The word magnet is often used metaphorically, and is probably usually one of the most natural-sounding of the set of synonyms:
magnet noun ...
1.1 A person or thing that has a powerful attraction.
‘the beautiful stretch of white sand is a magnet for sun-worshippers’
However, I'd have to re-arrange OP's example to 'The sumptuous ravioli is a magnet for many people at this restaurant.'
Crowd-puller, main attraction, inducement and lure are synonyms that may work on occasion.
If you're looking for a colorful word, you could use also catnip:
Someone or something that is very attractive or appealing to a particular person or group.
e.g. For me, this restaurant's sumptuous ravioli is just catnip.
I think "draw card" is probably the closest common phrase. "Drawcard" if you want a single world. Dictionary definition:
a quality or feature that evokes interest or liking; an attraction.
In this case one might say
For me, the draw card of [xyz restaurant] is their sumptuous ravioli.
By itself "draw card" would, in my experience, suggest that people in general would find it attractive, so qualifying it as a "personal draw card" would specify that it's your favourite dish.
The single word for "the thing that attracts" (as opposed to describing the attraction itself) is:
Most examples of this word usage are for the chemical substance produced by insects to attract each other: however it may be used in a general sense also.
When there may be more than one thing that is attractive but we want to point out the most attractive thing, we often use main attraction:
I think that would work well here too:
The main attraction for me at this restaurant is their sumptuous ravioli.
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