Laminated dough

Layers of dough separated by butter

Laminated dough is a culinary preparation consisting of many thin layers of dough separated by butter or other solid fat, produced by repeated folding and rolling. Such doughs may contain more than eighty layers. During baking, water in the butter vaporizes and expands, causing the dough to puff up and separate, while the lipids in the butter essentially fry the dough, resulting in a light, flaky product.

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