Inovasi, in Lake Bluff, IL.
https://inovasi.us/
They don't put a price for it on their website, which is why I can't remember, but it's under $100 for sure. It may go over $100 with the wine pairing.

We've taken my in-laws, who are in their late 70's and like nice restaurants, but have the typical generational aversion to "weird" ingredients, to places like Girl and the Goat, and there were only limited menu items they'd try. So it's not worth the money. We're taking them to Inovasi for a birthday next month, because they'll get a similar experience, but will enjoy whatever course is served, and we won't worry about wasting money!