Bake the cookies, rotating the pans halfway through, until crisp, 12 to 14 minutes. Let cool completely on the baking sheets. For the icing: Beat the powdered sugar and egg whites in a large bowl ...
A little slather of sweet frosting can take your crank up the craveability factor of your favorite cookie. That said, there are some pitfalls to avoid if you want the icing on your treat to be ...