1/4 cup white popcorn (we like Jiffy)
3 T. oil
Put oil and popcorn in a large pot with a lid. Turn heat on medium high and do not leave unattended. When you hear the first kernel pop, start shaking the pot around on the stove and occasionally lift the bottom from the heat. When the popping slows down to 1-2 pops per second, remove from stove. Wait until popping stops and lift lid very carefully watching out for steam. Shake desired amount of salt on top. After you make this several times you will discover how much salt you enjoy. You can even melt your own butter in the microwave and pour on top if you want to be really bad. However, it's much better than processed popcorn, so go for it.
Have you ever looked at the ingredient list on microwave popcorn?