Puzzle

I haven't done many puzzles lately, so here is a fairly easy one.

And Pike, this is exactly the name and wording in the puzzle as I got it. I didn't change it, but it works out well anyway.

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Allie takes fruit, cake, and cookies for her picnic.

She has three boxes for them. One is labeled FRUIT. One is labeled COOKIES. One is labeled CAKE.

But she knows her Mom likes to fool her and has put every single thing in the wrong box.

The only other thing she knows for sure is that the fruit is not in the CAKE box. Where is the cake?