Drizzle the olive oil into a large saucepan with a lid. Turn the heat onto a medium heat and wait for the oil to heat.
Turn the heat down to low/medium then place 3-4 popcorn kernels into the saucepan and place the lid on. Listen for all the kernels to have popped. When they have remove with a slotted spoon.
Pour all the rest of the popcorn kernels into the saucepan so they spread out easily in a single layer. Place the lid on and wait for the corn to pop. Give the pan a shake every so often so no popcorn gets stuck or burnt to the bottom.
Listen out for the popping sound in the pan, the sound will start to slow as fewer kernels are left to be popped. When you are waiting for 3 seconds between popping then remove the pan from the heat.
Remove the lid and scoop out the fluffy popped popcorn out of the pan and into a bowl, leaving the unpopped kernels (there are often a small amount). Rest for a moment whilst you prepare the butter.
Melt the butter in a small saucepan with the sugar and salt over a medium heat. After a minute or so the butter will start to sizzle, stir to make sure the sugar and salt have dissolved.
If you are making regular Sweet n’Salty Popcorn remove the butter now and pour over the popcorn and toss well so it’s coated thoroughly.
If you are making Sweet n’Salty Caramel Popcorn then leave the butter to carry on sizzling. After another minute it will start to crackle will begin to turn brown. Once the crackling has slowed and the butter is a nice nutty brown then remove from the heat quickly before it burns.
Pour the butter over the popcorn and toss well so it’s coated thoroughly.
Serve immediately