Pop your popcorn using your preferred method, then transfer it to a large bowl with nice, high sides.
Drizzle 1 tablespoon of your melted coconut oil onto the popcorn, stopping once in a while to give the bowl a toss. You want your popcorn coated really well with oil.
Sprinkle on 1 tablespoon of nutritional yeast plus the salt (if using), doing that same tossing thing.
Repeat steps 2-3 (twice) with the remaining oil and nutritional yeast.
Devour. Wish that your air popper didn't limit you to popping ½ cup of kernels at once. Make more.