Refrigerate the brownies until the frosting is
set, 1 hour or longer, then run a knife
around the inside
edges of the
pan to loosen.
Set pan with prepared crust on a large sheet
of foil and fold up foil tightly
around sides
of pan (you can turn 2 small sheets
of foil into 1 large sheet by folding their
edges together several times, then opening up like a book).