[Avodah] Why lungen on HoSha'ana Raba?

[Shoshana L. Boublil]

I was doing some research for HoSha'na Raba, when I discovered that in many, many communities, there was a custom to eat lungs (and liver) specifically on this night.

In many Ashkenazi communities, the food of choice is Kreplach. While it is possible to make them with any filling, my most traditional recipe -- uses lungs.

Among Lybian Jewry, this night is nicknamed "the night of lung and liver" and a special dish is served.

So, any ideas why this food became the food of choice on this night?

Shoshana L. Boublil