[This admission does in fact cause the Piemaker to look vaguely unsettled and sad. He reaches behind the bar and takes out an apple pie, beginning to slice it up for Kirk and Alpha]

The logic is he tried it, he enjoyed it, and he wanted to share his experience with friends.

He said you liked apple.

[The Piemaker slides a plate to Kirk and then to his own inmate]

I know it isn't cake. I made you a cake earlier. Have pie.