It's aparently possible for the tutorial to require you to eat toffee in order to progress when you can't get the toffee
I'm submitting this bug on behalf of Misu, a player who's new to the game, and reported being stuck when he or she first tried to play through the tutorial. He or she offered the attached screenshot as an explanation. When asked, he or she said that he or she gotten the toffee but had eaten it prior to taking the screenshot.
Somewhat confusingly, he or she also reported that "it said the tutorial had finished but i couldn't do anything else".