Scientists And Chefs Create Fully Edible Robot Wedding Cake

Scientists and chefs from Switzerland and Italy have built a robotic wedding cake you can eat in its entirety. Their creation, the RoboCake, is being showcased at Expo 2025 in Osaka. It features two fully edible robotic teddy bears, developed by EPFL’s LIS. “They are made from gelatin, syrup and colourants,” says Bokeon Kwak, a researcher at LIS. “They are animated by an internal pneumatic system: when air is injected through dedicated pathways, their heads and arms move.” The bears, which move and dance on the cake, have a flavour described as soft, sweet pomegranate gummies. Also featuring in the cake is the world’s first edible rechargeable battery, crafted from vitamin B2, quercetin, activated carbon – and chocolate. The innovation offers a potential solution to the global problem of electronic waste, which exceeds 40 million tonnes annually. To ensure the RoboCake was both safe and delicious, the researchers collaborated with culinary experts from EHL (École hôtelière de Lausanne), creating a cake that offers an example of a possible future in which special occasions are marked with desserts that move.