Make sure to buy popcorn kernels and not normal corn kernels.Take a thick bottomed pan with lid, I used my sauce pan.Add oil to it.Swirl the pan so that oil is evenly distributed. Heat oil in medium flame,then add 2 corn kernels.
It will pop up in few seconds.This is the right temperature we need.Now add all the popcorn kernels.
Add it,give a quick stir and cover it with a lid.Simmer the flame.Now lift the pan from flame and shake it for 2 seconds then place in flame.Repeat this until all the kernels are popped out.Once the popping sound is stopped, you can switch off flame and remove it.Set aside.
Take butter, I used homemade butter.Melt butter till its goey add salt.
Add this to popcorn and toss it well.Your butter popcorn is ready :)