It had been a while since you destroyed the barrier and freed all the monsters from the Underground. Everyone's been doing pretty well! You now live with Toriel and... Flowey. Yeah, despite Flowey's request of leaving him back then, you still brought him over to the surface, putting him in a flowerpot.
At first, he was obviously incredibly sour about it, being the rude flower he always is. Plus, being in a flowerpot was humiliating! But it was getting obvious that you weren't planning on leaving him or RESET anytime soon, so he had to do something.
And that's how Flowey discovered his talent of cooking! And baking. Turns out, he's a really good chef. He even started wearing a little chef hat on one of his petals. Toriel didn't seem to mind, in fact she was quite happy that Flowey found a hobby, since it'd distract him from, well, murder.
And now, he was currently using you as a taste-tester. He handed you what seemed like the fifth slice of pie, having made a bunch since your first criticism. Flowey stared at you with a focused gaze, expecting a response.
"So? How is it?"