I made a huge pot of base gravy (about 3.5 Ltrs) and made up a few sauces, vac sealed them and into the freezer for the missus for future use. I have done this twice before and it has been a successful way to get the wife to stop buying jars of pre-made sauces. Now all she has to do is cook up the meat and onions or whatever goes with the dish, open up one of the packets and reheat.
I made: Madras, Pathia, Rogan Josh, Chasni, plain curry, and Balti sauces. There was enough left over to make 2 curries tonight for tea. Each bag holds about 2/3 portions of ready made sauce.
Took a few hours in total but well worth it.