Heat margarine or oil in a skillet over medium heat. Add onion and cook for 3~4 minutes or until softened. Add garlic and cook for another minute until fragrant.
Next add the shredded jackfruit and cook for 20 minutes or until browned and caramelized.
Add some water, oregano, soy sauce, coriander, salt and pepper. Simmer for 10~15 minutes or until liquid is almost evaporated.
Finally stir in the lemon juice and set aside.
In the meantime, toss sliced red onion with red wine vinegar and set aside to marinate.