Mark Zuckerberg
Mark Zuckerberg Albert Gea, Reuters

Jewish Facebook CEO Mark Zuckerberg joined the millions of Jews worldwide in celebrating last week's Purim holiday.

Zuckerberg posted a picture on Friday of himself and his wife baking making the traditional three-cornered 'Hamentaschen' dessert. "Baking hamantashen. Chag sameah," read the caption.

Responding to an inquiry into what the pastries were, Zuckerberg wrote that Haman "was the villain of Purim and he famously had a three-cornered hat. These symbolize the victory over him."

In fact, that is only one of the reasons traditionally ascribed to hamantaschen. Another is that the pastries have filling hidden inside, symbolizing the story of Purim, a miracle in which G-d's role is hidden.

While Zuckerberg has professed to be an atheist, he has been growing increasingly more public about his ties to the Jewish faith. In September, Zuckerberg published a viral post about how he and his non-Jewish wife Priscilla Chan remind their children of their Jewish heritage.

"For Shabbat (Sabbath) tonight, we gave Max a kiddush cup that has been in our family for almost 100 years," Zuckerberg wrote.

"Her great-great-grandfather Max got it after our family immigrated here and it has been passed down through our family ever since."

Zuckerberg also asked for forgiveness before the Yom Kippur, which he called "the holiest day of the year".

In a post published after the end of the fast, Zuckerberg wrote that "I ask forgiveness and I will try to be better. For the ways my work was used to divide people rather than bring us together, I ask forgiveness and I will work to do better. May we all be better in the year ahead, and may you all be inscribed in the book of life."