I was on PastryScoop.com trying to figure out a substitution for cake flour and it said you could just use the equation "1 cup cake flour = 1 cup minus 2 tbsp a-p flour." Is that true? I am having a hard time locating cake flour. 
Thank you...
If you use AP instead of cake flour, the crumb/texture of the finished baked good may be a bit firmer/tougher than if you'd used the cake flour. This is because the protein structure of the two flours is different (they are ground from different wheats). You should be able to find cake flour at any grocery store. It is usually sold in boxes near the cake mixes. The most popular national brand is Swan's Down - that brand is in a bright red box.
Here's a baking ingredients substitution chart:
http://www.joyofbaking.com/IngredientSubstitution.html
I've substituted 3/4 cup all purpose flour with 2 Tbsp. cornstarch for one cup cake flour.
However, I really like the fine crumb that cake flour produces.
HTH
If you use AP instead of cake flour, the crumb/texture of the finished baked good may be a bit firmer/tougher than if you'd used the cake flour. This is because the protein structure of the two flours is different (they are ground from different wheats). You should be able to find cake flour at any grocery store. It is usually sold in boxes near the cake mixes. The most popular national brand is Swan's Down - that brand is in a bright red box.
I found a box of it today at Walmart... It's a Red Box with a White Swan. I must have stood in the isle for 10 minutes looking for cake flour and Bam... there it was... top shelf!
I cannot get cake flour where I live so I often use a substitution I found on the internet : 1 cup AP flour with 2T removed and replaced with corn starch. Looking at the answers in this thread there are obviously a few different ways of doing it. The cornstarch cuts the gluten content to make the cake more tender compared to using all AP flour. I would like to make a side by side comparison using real cake flour and my "home made" cake flour, but since I can't get cake flour in the first place I don't know if it is an accurate substitution. 
The cakes turn out well though.
Quote by @%username% on %date%
%body%