Sir Duncan's Doughed Naughts

Sir Duncan's Doughed Naughts is a donut shop in the Kingdom of Springfieldia.

History
Homer and Lisa walk past by it when they try to figure out how to earn enough gold pieces in order to get the Amulet of Warmfyre.

Lewis Clark and Becky can also be seen walking past it.

Behind the Laughter
Sir Duncan's Doughed Naughts is a parody of. This is also one of the locations that parodies the name; the other being Drunken Donuts.