Add coconut oil to a heavy bottomed saucepan along with 3 kernels over medium high heat. Once they pop remove them.
Take saucepan off the heat and add the cup of popcorn kernels. Swish the popcorn around in the pan or 30 seconds off the heat to make sure they are covered in the oil. Return to the heat and partially cover with a lid.
Once the popping slows down take off the heat. Add to a large bowl and season well with salt. Serve.