Q:What kind of pies require blind-baking?
A: As a very general rule, double-crusted or latticed pies are not blind-baked, as they require you to fold the top and bottom crusts together to form a seal. Typically, they're also baked for longer, to allow both crusts to set and crisp. Single-crust pies are usually blind-baked, the reason being that with completely exposed fillings, it's difficult to bake them long enough to set the bottom crust without negatively impacting the texture and appearance of the filling. But honestly, the best advice we can give here is to follow the recipes! They should always specify if the crust is to be blind-baked or not.