Make Your Own Cake Flour Recipe

Note: For every cup of all purpose flour,  remove two tablespoons of the flour and add in two tablespoons of corn starch.

Combine the ingredients in a sifter. Sift together four times. (I like to sift it into one bowl, scoop it out, and sift it back into the same bowl.) And store in a tight container. 

Instead buying of cake flour... this is what I do.