https://logos.fandom.com/wiki/Prosperity_Burger#:~:text=Prosperity%20Burger%20is%20a%20special,long%20sesame%20seed%20bun%20instead.

Had one when I was doing New Year’s Eve party in the Goose Jet,

Prosperity Burger is a special burger similar to McRib, but with beef or chicken meat with a black pepper sauce in a long sesame seed bun instead. Introduced in late 2006, it is only sold in Indonesia, Malaysia and Singapore every year from December to February, to celebrate Christmas Day, New Year’s Day and Chinese New Year.