Question: what is the difference between a muffin top pan and a whoopie pie pan?
Answer: I haven't used my pan yet but the whoopie pie pan is 16.5 x 11.2 inches - the muffin top pan is 16 x 11 inches. From what I could tell, they are very close. You can use either pan for whoopie pies and/or muffin tops. It can also be used for eggs (to fit English muffins) and cookies.