Cold pastry dough and hot ovens
There’s a scientific basis for the practice of chilling dough before baking it in a hot oven. This technique is largely related to the butter, which must stay firm to maintain the pastry's flaky texture. If the dough is too warm when placed in the oven, the butter may melt and seep out, rather than remaining within the pastry. The simplest way to keep your dough cold is to refrigerate it (not freeze it) to firm it up before baking. Additionally, as noted by Hollywood, using high-quality butter is essential, and be cautious with the rolling pin, as excessive pressure on the edges can deflate puff pastries.
While the process isn’t overly complex, it does require some effort to perfect. In fact, Prue Leith, Hollywood's co-judge on "The Great British Bake Off," prefers to use store-bought puff pastries, believing they taste good enough to justify the time saved compared to making them from scratch. Whether you agree with Hollywood or Leith is your choice, but keep in mind that there’s a similar cold and hot method for store-bought pastries as well—just ensure you thaw frozen pastries in the fridge before baking. They should be chilled, not frozen, when they go into the oven.
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