I have read that book as a child, have read it to my son a bazillion times and he has also watched the YouTube video of it a number of times.
I could have told you them all in either alphabetical order or the order he ate them in. When you said Watermelon which is the last thing he ate and the last alphabetically I threw Chocolate Cake out there and was hoping it would be in alphabetical order. It wasn't
I had to then say Cherry Pie to stop you thinking it was in alphabetical order If it was in alphabetical order I probably say salami next to try to help you find some educated guesses