Fire up the engine and let's have a carbecue
Don't bother turning the oven on, prepare dinner on the go - in your car

When it's 115 degrees outside, the last thing you want to do is turn on an oven.
Why not make your car do the work instead? It's already parked outside, soaking up the sun. All you have to do is harness some of that heat. Talk about energy efficient!
We tried three different methods of vehicular cuisine. Here's how our food turned out.
Car dogs
It's possible to cook just about anything on your car engine, except soup.
Obviously, you don't want to drive around the block 300 times just to cook dinner. That would be a waste of gas and time. Rather, if you're already driving somewhere, find something to cook that fits into your travel plans.
A quick trip is long enough to heat up hot dogs or a sandwich, while longer drives make for dishes like braised meats or vegetables.
Cooking times vary, depending on your car and how fast you drive.
On average, engine block food is going to take longer than a conventional oven but far less time than a crockpot. Hot dogs will take about 30 miles, while a pot roast will be more like the drive from here to Los Angeles. In traffic.
Here's how to do it:
Wrap the food completely in heavy-duty aluminum foil.
Find a hot spot on the engine for your food. First drive for a few minutes, turn off the car and check under the hood. Find the hottest spot by lightly (and quickly) touching your finger to metal parts on the engine. You could also dribble some water on the engine — the hottest parts are the ones that sizzle the most.
Once your food is securely placed on the engine, add enough crumpled foil around it to keep the package snug, even while you're speeding down the freeway.
Dash cookies
While Meat Loaf saw paradise by the dashboard light, we see an opportunity for fresh cookies.
A vehicle's window acts like a greenhouse, trapping heat inside. That means the temperature in a closed car can climb as much as 40 degrees in about 10 minutes, according to the American College of Emergency Physicians.
That kind of heat is deadly for kids and pets, of course. But it's perfect conditions for baking.
Here's how to do it:
Prepare your favorite cookie dough recipe. Slice evenly and place on lightly oiled baking sheet.
Place the baking sheet on top of your vehicle's dashboard. (Use towels underneath the sheet if you're worried about any possible damage to the dash.)
Let the cookies sit, about three hours. Total cooking time depends on a lot of variables, including the temperature outside, the size of your car and the direction you're parked. (Note: In our totally scientific experiment, three hours was not quite enough time.)
You'll have to feel the cookies for doneness, since the sugar does not brown and caramelize the way it does inside an oven.
Hood eggs
People always say it's hot enough to fry an egg on the sidewalk. Is it?
Not so much. According to the Library of Congress, an egg needs a temperature of 158 degrees to become firm.
In order to cook, proteins in the egg must modify, then coagulate, and that won't happen until the temperature rises enough to start and maintain the process.
Sidewalk temperatures, though scorching hot, vary depending on composition, amount of sunlight, humidity and the temperature of the air around it. Even the hottest blacktop only gets to about 145 degrees.
We figured the hood of a car might be a better conductor of heat, mimicking the metal of a skillet.
We were wrong.
Our eggs didn't exactly cook, but perhaps we didn't have a hot enough car. I guess we'll have to wait until the next 158 degree day.