Nice tunes :)
Fun game :)
One suggestion for future improvement, would be to show some visual progress when spreading, so you see it spread on thinly at first, then more and more until the final jam-covered slice. I was a little unsure if I was doing it properly at first due to the lack of visual feedback (other than the knife sliding over the toast).
This could become an odd little niche simulator game on Steam, if you decided to take it that far :P I’d probably wishlist it, too.