What is Flaky pastry?

Flaky pastry — A type of pastry that's rolled, folded and re-rolled several times to create layers of pastry which in the heat of the oven will rise into thin leaves. Heavier than puff pastry, but easier to make, it's usually used for savoury pies and is often baked with a roasting pan full of water at the bottom of the oven because the steam helps the pastry rise evenly and develop a crisp crust.