Great little scene stealer that Honey isn't it !
Afraid the way they brewed their Tea up i the Western Desert would have the "elf & Safety" lot having heart attacks as anyone who's ever watched Ice Cold in Alex will know.... First shovel some sand into a "Flimsy "fuel can with top cut off, pour in a cup or so of petrol and stir about a bit and gingerly light said mixture at arms length, place on top at a forty five degree angle another flimsy cut in half and wait for water to heat, add Tea leafs and Canned Milk and dip your mug in to scoop out your Tea !
For further field cooking expedients in WW2 try, Army Catering Corps on Youtube !