More videos from this episode Blueberry Pie and Foolproof Pie Dough Sweet, delicate blueberries are easily overshadowed by a dull thickener. Our goal was a sliceable pie with bright, fresh flavor. Pie Crust Why does too much water make pie pastry tough? Baking Sheets The flimsy jellyroll pans sold in most stores are useless. But a heavy-duty rimmed baking sheet is an unheralded workhorse every cook should own.