Your Tuesday Morning Brain Teaser!

It is time for another edition of your 'Tuesday Morning Brain Teaser!'  As my science teacher in high school used to tell me, "You are only hurting yourself if you cheat."  If I had a nickel everytime I heard my teachers tell me that!   Here is today's question:

What is the official dessert of the state of Massachusetts?

And, I am even in a good mood today so I will give you a hint.  Here's my hint:  It's not pizza!

Good luck!