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.
To a sauce pan - add butter and cane sugar to it.
Heat it up once butter melts and combines with sugar add salt and vanilla essence.
Add nutella and heat the mixture for a minute not more than that.Switch off.
Add popcorn toss well.
I don't it will retain its crunchiness the next day so wouldn't recommend for storing as other pop corns.