Slowly cook through the onions until they are soft & transparent in a splash of cooking oil for at least 5 mins
Add the rest of the ingredients and half of the water into the pan and simmer on a medium heat for at least 10 minutes until the corn is soft.
Watch the amount of water - add more at intervals but take care that the bottom doesn't burn.
Blitz with a blender to make a really smooth soup.
I sprinkled chilli flakes on the top of mine as I like a real kick. Dermot had ground black pepper on his as he is a little more controlled than me!