Why your favorite cupcake stays fluffy and moist

At home science - How to make microwave cupcakes - ExpeRimental #20 · 4:24 · Video: The Royal Institution · Watch at the source

In short: Join Jo and her daughter Sally as they turn the kitchen into a laboratory. This video explores the chemistry of microwave mug cakes by systematically removing key ingredients to see what happens to the final bake.

By treating baking as a scientific inquiry, the experiment reveals the specific function of three core components. Baking powder is identified as the source of sponginess, as it releases carbon dioxide gas during the process. Eggs provide the necessary structure through their long, chain-like molecules, while oil acts as a protective coating that prevents the cake from drying out.

Supported by the Royal Society of Chemistry, this approach encourages children to think like scientists by observing cause and effect in real-time. It transforms a simple snack into a lesson on molecular structure and chemical reactions.

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