OK so i can cook for a number of people and usually get it about right. BUT am doing a chorizo and potato stew for 24 all of whom will be boozing hogmanay then heading to the hills NY day. How much is enough?
So far 1kg onions, 7.5 kg potatoes, 1.5kg chorizo and 1.5kg other root veggies. Does that sound about right for masses?

