This is such a simple recipe and you could change all the proportions to your own taste,
but I get asked for it all the time, so I'm posting it here for easy sharing.
Place 3 tbsp oil in a large, heavy-bottomed, pot with 3 kernels corn and cover.
Meanwhile, gently melt the coconut oil (or oil&butter blend) in a smaller pan.
Heat large pot slowly (4 on my gas stove, or slightly higher than med-low).
Once the 3 kernels pop, add the popping corn and cover again.
Gently shake pot back and forth to coat kernels in oil.
When popping slows to 2 seconds between pops, turn out into a large bowl.
Pour melted oil over popped corn, add generous pinch salt and nutritional yeast (or more), and toss to combine.