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An intellectually delicious recipe for electric meringue

Feedback explores a feat of dessert-based engineering cooked up by researchers in South Korea and the US, and ponders the true meaning of public relations

By Marc Abrahams

14 June 2023

New Scientist Default Image

Josie Ford

Power meringue

Researchers in South Korea and the US have cooked up a recipe for meringue that you can then use to make electrical batteries.

Extract albumen from raw eggs, after removing the yolk and chalaza (the twisted strips that attach the yolk to the shell). Whisk with a hand mixer in a steel bowl. Wait 5 minutes. Gradually add an equal amount (by weight) of white sugar, whisking for 15 minutes to produce a porous albumen foam. Bake in a convection oven at 100°C (212°F) for 2 hours. Then bake in an argon-filled oven at 800°C (1472°F) for 2 …

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