Yup, this is no typo. It's one of those things which result in countless cases of wrong-ticket-wrong-place. Shanxi (山 (shan1) 西), literally "West of Mountain" is where the ancient city of Pingyao resides. Shaanxi (陕 (shan3) 西) is where China's ancient capital of Xi'an is, and also home to Huashan which I wrote about earlier. What makes matters even more confusing is that the two provinces are right next to each other!
The food I experienced in these two provinces were pretty similar, with some differences. We see much more influence from the Muslim-Chinese in Shaanxi i.e. lamb kebabs, flatbreads, heavily spiced (cumin, dried chilli) foods etc whereas Shanxi's cuisine is more Northern-Chinese i.e. more poultry, pork, beef and less heavy-handed with the spices. However, there is so much criss-crossing between the two provinces that it becomes a blurred spectrum of tasty delights after a while and one stops comparing.
Here are some examples (from both provinces):
First pic: Lamb soup with crumbled mo. Now mo is a little bit difficult to describe. It's technically a flatbread which is baked, but more dense and less doughy. Think a cross of 70% bread and 30% biscuit. It is usually in the shape of a thick disc. See second pic.
Second pic: Mo with a super tasty filling of "pulled-beef". This was what the crowd was queuing up for. They'll put a piece of beef on the chopping board, pulverise it while adding lashings of spices and broth, creating this intensely flavoured, juicy filling for the dry and crusty mo. Great contrast in texture and good stuff.