Girls, what does it mean if she offers to make me cookies?

I met a girl in one of my classes and later she actually asked for my number before I asked for hers. I flirt with her and she always sits next to me in class and talks to me at parties and stuff.

Anyways, she said she was having trouble in a class, so I offered to help her study for a class. She offered to make me cookies in return. Is she just trying to make it an even trade or is this girl-speak for liking someone?
Girls, what does it mean if she offers to make me cookies?
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