Maybe one of the simplest soups, but because of its simplicity, you want to take extra care when making it. Since the main ingredient are onions and you don’t add much else in great proportions, you can’t hide behind other grand flavours. So you want to properly caramelize the onions to get that delectable balance between savoury and sweet. To add just that extra bit of oomph, I like to add some Marmite, it seems to enhance the flavour of the onions.
