Seasoned Advice is a question and answer site for professional and amateur chefs. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Why do we use eggs in cake baking?

share|improve this question

There are basically two types of cakes: butter and sponge (or Génoise). In a butter cake the egg proteins, like the gluten proteins, help build the structure of the cake. Additionally, the egg yolks have emulsifying action, helping create a smoother batter and more stable air bubbles. In a sponge cake the eggs additionally act as the main leavening agent, helping create and retain the bubbles that will expand during baking.

The eggs also add fat, flavor, and color to the cake.

share|improve this answer
Photo of cake made with varying number of eggs: Comments thereon:… (Be aware, Reddit is fairly noisy) – Wayfaring Stranger Aug 13 '15 at 18:38
Really - which is a rich fruit cake? – dumbledad Dec 19 '15 at 11:00

Hobodave's edited title is more appropriate, I think, as many delicious cakes do not have any eggs. Eggs have different effects on different cakes, but I would argue that if your dish is simply "cake," then they aren't, strictly speaking, necessary. It's often possible to replace eggs with other ingredients to achieve the same desired effect: adding more baking powder, protein and fat is usually a good place to start.

However, it's absurd to talk about what role eggs play in "cake," because this has different answers for different cakes. Eggs in a pound cake play a completely different role than eggs in angel food cake, for example.

share|improve this answer
Maybe better questions would be "What role do egg whites play in baking?" and "What role do egg yolks play in baking?"; that's angel vs. pound cake dichotomy. – ant Aug 30 '10 at 19:37

Coagulated egg proteins in combination with gluten give baked goods the supporting structure they need.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.