Mary Berry, the beloved baking icon and former Great British Bake Off judge, has shared essential advice for home bakers: avoid low-fat butter when making cakes. With decades of expertise, including training at Le Cordon Bleu and authoring 70 cookbooks, Berry knows that butter choice can make or break a recipe.
Why Butter Matters
Berry emphasizes that the fat content of butter is crucial. She told BBC Good Food: "I always aim at over 75%. The problem with lower fat spreads and butters is they have a higher water content. When it evaporates, it causes layers to bind together in your mix." In the UK, high-fat butter is common, but it's still worth checking labels.
How Fat Content Affects Cakes
Butter with fat above 75% has less water, helping preserve air pockets during baking. This results in a lighter, moister, and more delicate cake. Low-fat alternatives can lead to dense, heavy textures.
Tips for Softening Butter
Berry also advises softening butter before use. A quick trick: cut the required amount into cubes from the fridge, place in a bowl of lukewarm water for 10 minutes. Avoid softening the whole block, as melting and refrigerating leftover butter can affect its flavor for future use.
By following this guidance, bakers can ensure their sponge cakes and other bakes turn out perfectly creamy and light. The higher the fat content, the richer and more tender the result.
