Place the olive oil into a heavy bottomed sauce pan and heat over a medium temperature

Add the tomatoes and spring onions and sauté until the onions are soft

Mix in the garlic and cook for 1 minute before adding in the rest of the ingredients

Stir well and bring to a boil

Reduce the temperature to low and simmer for 60 minutes

Remove from the heat and leave to cool slightly

Place into a blender and pulse until smooth

Store in a sterilized glass jar in the fridge