I really want to understand the science behind this. In my country most bakers cream margarine and sugar to make cakes, especially if the cake will be covered in fondant, because butter is expensive unless a recipe calls specifically for butter. Unlike butter, it takes a longer time about 45 minutes to an hour (at 10 minutes intervals) to cream. The cakes comes out well though. Now my question: why does margarine take longer; what the science behind it compared to butter? Thanks everyone
Akos,
From baking science there nothing to be gained by beating the margarine for 45 minutes. Unless there’s some strange form of margarine being sold where you live that has some high levels of hydrogen atoms. But I doubt that is the case.
If you are still doubtful then run an experiment.
Make two cakes using the same recipe.
Beat one for 45 minutes. Beat the other for the standard five minutes. Then evaluate each one and see if there is a marked difference in quality of the cakes. If the 45 minute creaming cake has a markedly better quality
Margarine is a liquid fat that is turned into a solid by adding a hydrogen atoms. This process is called hydrogenating, so these oils are called hydrogenated oils.
When the hydrogenated, the oils become very hard, so hard they cannot be used. So they “partially” hydrogenate the oils so they are soft enough to use. Some are used as shortening, some turn into margarine to mimic the look and consistency of butter.
The whole point in making margarine is to use it exactly like butter.
Creaming margarine for 45 minutes would defeats the purpose of creaming butter and sugar.
Creaming butter and sugar is mechanical leavening. Mechanical leavening is to assist the baking powder and/or baking soda in your cake formula. It is not to stir the butter and sugar together. It is to help the cake rise. That is the only purpose of creaming butter and sugar. It is mechanical leavening.
As the beater goes through the margarine, the sugar crystals cut in to the margarine, Those cuts create little pockets. But if you beat for too long you shred the pockets away.
Those little pockets are very important. Those little pockets must expand and capture the steam during baking. This helps to push the batter up. Then it is certain point the margarine will all melt away.
Margarine has a melting point of 95°F (35°C), Which is only slightly higher than butter of 90°F (32°C). But both butter and margarine’s ability to stretch and expand during creaming requires that you keep it in a temperature range around 70°F ( 21°C). So if you over beat it the margarine will not expand. Even if you chill it, the batter will still not expand fully in baking.