So here i was at the end of a day hike, lunch all gone.. with a very long unexpected wait for a tow truck...dinner time passing by and i am getting hungry..

Eventually i can just stand the thought of the dehydrated meal sitting in my pack (emergency rations) even if it is cold and crunch made with cold water...

Sitting in the car i have and idea...

What i used;

1 Dehydrated food foil pouch(important) ( image 1)
Parked car - with working engine
Water
Hunting knife - and bit of wood

Step 1: Preparation

Splay the base of the dehy pack so that it stands up unassisted (image 2)- (unsure if this is a feature of other types)
Opened the dehydrated food pouch, add the required amount of cold water(usually hot), stir, squeeze most of the air out, re seal and roll down
Pop your bonnet and put it up on the stay
Make sure your car is in neutral/ Park - brakes on - start it

Step 2: Heat

After a few minutes running it should be evident where the hot spot is on your motor...(image 3)
Place the dehy pack down on the hot spot - splayed base first (luckily mine has a pipe and wire run allow me to wedge it in well) (image 4)
Lower the bonnet on to the catch - not closed ( be careful of your fingers...)
And sit back... takes bout 15-20 mins on idle on my 1500cc ( go NZ)
Crave a spoon.. mine looked bit like a spade but it worked...

Post script.....

Had to do it again last week.. this time i didn't need a tow truck.. but my gas cylinder was mysteriously empty..?? so after storming down a hill in the dark dreaming of my super dinner waiting to be cooked in the chilly bin... i had to resort to the dehy again ...- at least i had a spoon this time.... (bush to wet for easy fires lol) at least this time i had a nice tent and sleeping bag to jump straight in to... ahhhh heaven..