- Heat the oil in a large pot or stovetop popcorn popper over medium heat until it's shimmering but not smoking. 
- Add the popcorn kernels to the pot or popper, ensuring they form an even layer on the bottom. 
- Cover the pot with a lid or the lid of the popper, and if using a pot, hold the lid slightly ajar to allow steam to escape. Shake the pot or popper gently to coat the kernels with oil and prevent them from burning. 
- Listen for the popping sound as the kernels heat up. Once the popping slows down to about 2-3 seconds between pops, remove the pot or popper from the heat. 
- Carefully remove the lid, keeping it away from your face to avoid steam burns. Transfer the popcorn to a large bowl and immediately sprinkle it with salt, tossing gently to coat evenly. 
- If desired, drizzle melted butter over the popcorn and toss again to coat. 
- Sprinkle any additional seasonings such as nutritional yeast, chili powder, garlic powder, or Parmesan cheese over the popcorn and toss gently to distribute. 
- Serve the freshly popped popcorn immediately while it's still warm and crispy. Enjoy as a snack or as part of a movie night or gathering. 
- Store any leftovers in an airtight container once cooled. Popcorn is best enjoyed fresh but can be stored for a day or two. Reheat in the oven for a few minutes to restore crispiness if desired.