On the Shabbos following Pesach, there is a custom of some to bake "Shlissel Challah" - challah with the design of a key, or challah with a real key actually baked into it.
Challah With Keys? Give Me Bagels With Locks.
On the Shabbos following Pesach, there is a custom of some to bake "Shlissel Challah" - challah with the design of a key, or challah with a real key actually baked into it.