Given the task definition and input, reply with output. In this task, you have to identify the named entities (NER) which are the ingredients required given its directions. Named entities are the names of the items without their quantity.

Bake the puff pastry shells according to the package directions. Cool completely on a wire rack., Place the cream, chocolate, Nutella and butter in a medium saucepan on medium heat. Cook and stir until smooth. Pour mixture into pastry shells. Refrigerate for at least 40 mins until firm., Dust lightly with cocoa powder. Garnish with white chocolate shapes.
pastry shells frozen, heavy cream, chocolate-hazelnut, butter, cocoa, white chocolate