Fry the onion rings in Naturli’ Organic Spreadable on a medium heat.
Once the onion is shiny, sprinkle on the sugar Stir regularly while the sugar caramelises. Remove the onions from the heat.
Cut the avocado into slices. Put the burger together with lettuce, veggie burger, sliced avocado, sprinkle sesame, top with onion and finish the top of the bun.