Hi,
If you can locate someone who has an Italian family member who makes pasta, then I would have a fresh pasta class including hand forming ravioli's, tortellinis, ect. IT is an unusual skill, which they can demonstrate later.
Ditto for Chinese: making homemade eggrolls, wontons and dumplings would put them in the different league and better than
most restaurants. You may find this
homemade potsticker thread inspiring.
German spaetzle are easy and best when made fresh.
One of the lessons I still remember from Home Ec in 7th grade was a film strip on making cream sauces. It was one cup milk, a teaspoon of salt, then butter:flour from 1-4 tablespoons. It's all simple once you know how and beguiling when you don't.
Learning how to make pie crust is 1-2-3 once you know and more convenient than the frozen or premade stuff. Filling is a snap, though
crust is technique. (You seem to be in Chicago, so potentially I could teach this.)