Add a few popcorn kernels. When they sizzle or pop, the oil is ready.
Add the remaining popcorn kernels and salt. Stir to combine. Cover the pan. If possible, vent the pan a little. This helps to prevent soggy popcorn. Shake the pan every few seconds until the popcorn begins to pop. Then shake constantly as popcorn pops. As soon as the popping slows down to every few seconds, remove the pan from the heat.
Popcorn Salt is a very fine salt that clings perfectly to popcorn. If you can't find it, use table salt or pink salt.