I found that using canola oil vs butter in making red velvet cake was so much more moist. It was excellent! In all other cake recipes butter is normally called rather than oil. Also, when would you use cake flour vs all purpose. It is better to use all purpose flour when making cake with fruit, such as pineapple cake.
Thank you so much for your help!
Oil is used in place of butter for cakes that have to be refrigerated and perhaps eaten cold. Typically that would be cakes with cream, cream cheese and other perishable fillings. Oil makes for a moister but less flavorful cake. This is why oil is usually use for stronger flavored & distinctly flavored cakes like carrot, chocolate, red velvet.
Cake flour makes for a more tender cake because it contains less protein than APF. Protein binds with liquids in the batter and form gluten. The more protein in the flour, the more gluten forms and the tougher & sturdier the cake.
The recipe will tell you whether to use cake or APF. Don't substitute unless you know what you're doing
There are two types of raised cakes: foam and butter.
Of course there are different categories of foam cake, but all butter cakes use butter.
To learn more about the different categories of cakes, and the why's of common cake baking ingredients:
In addition, the site really helps with understanding the science behind baking and includes help with all cake making techniques.