Real icing is a simple combination of confectioner's sugar, egg
whites, and a little bit of lemon. It adds a
level of tanginess, an extra added flavor to something really
simple. You can keep it as loose or as solid
as you want it because you want Just by increasing
or decreasing the liquid in the combination you're coming together
with. You could diet. You could add different flavors to
it. It's pretty versatile, and it sets pretty quickly too.
And it's great for decorating cookies.