What is beurrage puff pastry?

Answer 1

Beurrage is the butter block that is used in the production of puff pastry. It is also referred to as the "roll-in fat" because it is rolled between the layer of the detrempe (dough part of puff pastry). The steam released from the beurrage during the baking process is what causes the natural leavening effects and multiple layers in puff pastry.

Answer 2

its similar to puff pastry, but stronger, you can make all sorts of things with rough puff pastry, you can make :

Sausage rolls

Tarts

Pies

Sweet pastrys

and more...