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By Lucy Cufflin
Published 2013
Puff pastry is made by rolling and folding pastry dough so lots of layers are built up. As the pastry cooks, the air between the layers expands and creates the gaps so the pastry puffs up. It then sets in place. Pre-heat the oven to 400°F/200°C. Puff pastry will not rise and set if the oven is not hot enough.
