I started with a block of cookie dough from the fridge section at the store. You know the kind (if you're in the US), it's a brick scored into 20 pieces, you break them out onto a cookie sheet and bake them, for when you're too rushed or lazy to make your own or buy the tube of dough. Anyway. I broke out 12 pieces. Put them on parchment paper on a rimmed cookie sheet (this part is important). I flattened them a bit with the heel of my hand.
Put the cookie sheet on the dashboard of the elderly Nissan in the driveway about 11:15 AM. Not the hottest part of the day yet but it was definitely in full sun and would be for several more hours.
While the temp inside a car can get lethal to people and pets, at ~175 degrees (YMMV) it takes a long time to bake cookies. But at four hours in (3:15 PM) I took them out. CAUTION: TRAY IS HOT. Use an oven mitt like I did.
The "low and slow" method does not lead to crispy cookies, at least not off this dough. They're cooked all the way through but are definitely soft and almost need a fork. I flipped some of these over getting them from the cookie sheet because they're so soft. But they're done and they taste good!
Yes, they still look moist, too. I have enough pieces that I might try again tomorrow and go for 5 hours. It's also possible that a plain cookie dough, without nuts or chocolate or other additions, might cook better.
Then I mentioned making a pizza on the engine block and Huxrin looked at me like I'd lost my mind.
However - this might be a good way for meringues? Heh. I honestly don't know - I know they have to have the "low and slow" but I'm not sure if a car would have low enough humidity for them. Might be worth a test.
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