Page 183 - United States of Pie

and continue to mix with your hands, rubbing the butter between
your fingers until you have a crumbly streusel.
When the pie has baked for 35 minutes, remove it from the oven

and gently pat the streusel over the filling. (The custard will not be
set at this time.) Return the pie to the oven, and continue baking for
about 40 more minutes, until the streusel has melted slightly into the
custard and the cornflakes are crispy and brown. Let the pie cool to
room temperature before enjoying.