Angel Food Cake requires a very specific type of texture, which is why this type of flour is the one you want to substitute into your recipe.

To convert all-purpose flour to cake flour, you can use the following formula: For every cup of AP flour, remove 2 tablespoons of flour and replace it with 2 tablespoons of cornstarch.

Most of the recipes include some form of coffee (instant coffee, instant espresso, or brewed coffee) to enhance the chocolate flavor, but one forgoes this. Most use all-purpose flour, but one goes ...

Of the four recipes I tried, this was the only one to specify cake flour, which is more finely milled and lower in protein than all-purpose flour, theoretically enabling a more tender texture ...

When it comes to flour for baking, most whole-grain flours are not a 1-to-1 replacement with all-purpose flour. Too much ancient grain flour can make a bake dry, for instance.