What your favorite specific dishes you can only get at a singular restaurant? (Examples in post)

If anyone posts a dish they think is only served at one place, but you know of another restaurant that also serves it, please reply so we can benefit from each other's knowledge.

Bonus points if the restaurant is local.

For example:

The cheesecake brownie at Paulie's

Brisket Jalapeño pizza from Pepperoni's

Sea Salt Ice Cream from Aqua S.

5 leches cake from Cuchara

S'mores crepe from Sweet Paris

Etc.