Nothing compares to the flavor of rich puff pastry created from rolled layers of butter and dough, so crisp it shatters in your mouth. During baking, the butter melts in the oven and creates steam, separating the layers and making the dough extra-flaky. The addition of rum is a hallmark of Austro-Hungarian bakers.
You can substitute an equal weight of store-bought pastry for homemade but be sure it is made from butter, not shortening. Here are a few pointers: