Jacqui, Blochouse Bay.

Create a slow cooker with a straw box or hay box by using a chilly bin or a carton, and putting a folded towel in the bottom. Bring your casserole to the boil so it is all bubbling, then put it into your straw box. Push clean towels around it so there are no gaps. Fold another one on top of the lid to make sure it’s surrounded by this padding material. Leave for the required time. I actually cooked a one pot meal using this method as I drove from Auckland to Morrinsville. The meal was ready when I got there!