Step 1: Supplies
1 box of corn muffin mix (I happen to use Jiffy)
1/3 cup of milk
a mixing bowl
something to mix with (I use a hand beater)
a spoon (not shown)
I'd recommend once you've got everything together, go ahead and preheat the oven to 375F so it'll be ready when you are.
Step 2: The Pan!
Making a pan is fairly simple, get a sheet of aluminum foil that's roughly square. I place the jiffy box down about 2 inches from each edge and fold the aluminum up. At the corners, just pinch the foil together and fold the little triangle to one side or the other. As you can see from the image below, I try to make the box about half again as wide and as tall as the jiffy box itself. This seems to be a good size to evenly cook.
Step 3: Mix & Pour!
Once you've got everything a nice, even consistency, pour it into your pan and spread it around to an even height.
Step 4: Into the Oven!
Another trick I've learned is to place the foil such that the very ends are resting on bars, not sagging down between them.
Step 5: Cooking!
I started the timer at 18 minutes, since I'm paranoid about burning things. The first image is what it looked like at the end of those 18 minutes. The loaf is way too pale, it's obviously underdone.
After about 6 more minutes, I checked again, and it looked to be about done. I jabbed the center of the loaf with a toothpick and wiggled it around. It didn't feel gooey, and the toothpick didn't have any uncooked batter on it when I pulled it out, so I proclaimed the loaf ready to eat.
Step 6: Serve and Enjoy!
Now just make sure to turn the oven off, and you're ready to eat!
For those of you wondering where the happiness comes in, I threw a party based entirely around this stuff, and it was probably the best party I've ever had. I'm serious.