So i made a bacon and egg pie this morning, each time i make pastry it just falls apart. I followed the instructions and then sprinkled on the water and gathered it all together ready to knead and it was just a pile of crumbs, then it would fall apart and still be crumby as i attempted to knead it so i rolled it out in a fashion and intended to lay it in my pie dish except i had to do it in about 12 pieces then press it together. Popped in my filling then the same with the lid - its like a patch work quilt! Where am i going wrong or shall i just buy just roll in future?