Making sourdough hamburger buns adds unique flavor ... Optionally, sprinkle sesame or poppy seeds on top of the egg wash. Bake the buns for 20-25 minutes, or until golden brown on top and sound ...

The bun here is just as important as the toppings because Chicago dogs are always served the same type of bread: A steamed poppy seed bun. But why are poppy seed buns so crucial to a Chicago dog?