north of boston-appple orchards and restaurants?

I am planning on making an excursion to the Topsfield Fair tomorrow afternoon and I would like to go apple-picking on the way there, and have dinner on the way back.

However, as a usually carless city-dweller, I am entirely unfamiliar with the surrounding area. E.g. I've tried to scroll through the board for suggestions, but I have no idea where anything is in relation to each other or to metro Boston!

Can someone please help me find:
1)A good apple orchard that offers heirloom varieties as well as cider and great doughnuts
2)A chow-worthy dining experience hopefully not too far out of the way of the return route from Topsfield. (is Oga's anywhere close to this?)

I'm willing to drive within reason, but please no hour-long detours!

Thanks!!