12 VOLT PIE WARMER.

My son n law gave this food warmer for me at xmas.
It works a treat,heats up a good size piece of bacon egg pie in 40 minuts at you are driving along.Doesnt get hot on outside.Even with truck turned off it works great while you are watchn for deer.
Photo shows hot piece of pie and scone which took 40 minuts to heat up real hot.I reckn cheese rolls would go well too.
Brought at SuperCheapAuto.Not sure of exact price but less than a $100.
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Hot meals. Deer galore. You are on fire.

He got given one similar from work lol. Looks like you be set up well now,and if it ever craps out you will have a good thermal target to check rifles zero lol