Is interesting you got them from a butchers.
Never made them, but you need a well balanced filling. Also a very well fried filo pastry I would imagine.
You could ask them if they are made in house or bought in.
You could Google recipes and perfect them over time.
Also another option is having a friend of Indian hertige to show you how to get them so good.
Definitely try make them yourself, and make it your mission to beat the butchers version.
Imagine freshly homemade ones, you can do it Matt!