Melt the oil over a medium/high heat in a large saucepan
Add the popping corn and cover
When the corn starts to pop, shake the pan gently from time to time over the heat, to prevent burning
When most of the corn has popped, remove saucepan from heat. You will probably find there are a few that remain unpopped. Transfer to a large serving bowl.
Sprinkle on the stevia and mix well.
Consume immediately.