Companion post to the Yum But Why podcast episode: “Birthday Food Traditions: Cake, Candles, and Seaweed Soup”
Birthdays are universal. But what you eat to celebrate them? That’s where things get interesting.
In our latest episode, Kinara and Aparna dig into the surprisingly deep history of birthday food — and it turns out even the most familiar traditions have wild origin stories hiding inside them.
Birthday cake traces back to ancient Greece, where round honey cakes were lit with candles as offerings to Artemis, goddess of the moon. The smoke, people believed, carried wishes and prayers up to the heavens. Sound familiar? That same idea is still alive every time a kid blows out candles and makes a wish.
The modern birthday cake as we know it came from 18th-century Germany, where children’s birthdays were celebrated with Kinderfeste — festivals featuring candle-topped cakes. German immigrants brought the tradition to America, and once the Industrial Revolution made sugar and flour affordable, birthday cake stopped being just for the wealthy.
The Happy Birthday song has its own dramatic story. It started as a classroom morning greeting written by two sisters in 1893, got adapted into the birthday version by their sister Jessica, and was then copyrighted and owned by a corporation for nearly a century. A 2016 court ruling finally put it in the public domain.
And then there’s the rest of the world. In Korea, birthdays start with a bowl of seaweed soup — a tradition rooted in gratitude for your mother, inspired (really) by watching whales. In the Netherlands, the birthday person brings the cake. In Australia, kids eat buttered bread covered in sprinkles. In Jamaica, someone rubs flour on your face.
Different food, same feeling: I’m glad you’re here.
Want to learn more? Here are some places to start:
The history of Kinderfeste and German birthday traditions
Yum But Why? 
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