Where to get a hot dog in New Hampshire? Anywhere to buy Grote & Weigel?

2013/10/25 23:18:10
I'll be visiting New Hampshire the end of this week..
My favorite hot dog ever is a Grote & Weigel. Any places I can buy them up there? I want to bring a styrofoam cooler in case I find anything cold to take home.
Any places up there to get a good hot dog with chili? I'll be in Pelham, Lanconia, and even Methuen, MA.