Corn Dogs - Boston Area or Central MA - where to find?

Hi;
 
We have an exchange student coming to visit from England and one of the foods she wants to try is a corn dog. These are actually somewhat hard to find as most hot dog joints do not serve them. As they need a friolator to be cooked that must limit the number of places that would serve them. Any and all help appreciated.

What's the timing on her visit? If it's later in the summer when the country fair and 4-H fairs start there are always vendors there that have corn dogs....

 

 

Jasper White's Summer Shack/s (at least their Cambridge

location) regularly serves corn dogs, FYI.

 

 

It will be in April.
 
I thought of Summer Shack but did not see them on the menu online.
 
Thanks.

Look again: http://www.summershackrestaurant.com/uploadDocs/Winter%20Menu%202010.pdf -- under "Sandwiches," FYI.  

Thanks!!!

Local corn dogs are a rare breed. I know Sonic has them on their regular menu. There are a few in MA. But it's a FF chain. Then again exchange student from England may get into the chain angle.

I had not thought of Sonic, thanks!! 
 
They were planning one in Marlborough but it never happened. I know of one in Wilmington and in Peabody.

There is a Sonic on Rt. 1 North in Danvers/Peabody. Never been there or had a corn dog at Sonic.