On Thu, 21 May 2009 16:19:02 +0100, "BB" .>
wrote:

>Hi
>Ok I got the hump.
>I made up a samosa filling.
>Used pre-made samosa/ spring roll pastry sheets.
>Then shoved them in hot oil.
>Done it before and all worked fine. Used left over pastry that was refrozen
>before, no problems.
>This time they puffed up and opened up, filling everywhere, well in the pan.

In addition to the other possibilities suggested, particularly the
excess dampness that refrozen pastry can have, if you don't get all the
air out of the wrapping, it will expand and explode.