Winter cannellini bean soup

Name: Winter cannellini bean soup
Ingredients: 1 tbsp olive oil; 4 shallots finely chopped; 2 garlic cloves finely chopped; 1 carrot finely chopped; 2 celery sticks, finely chopped; 2 leeks finely chopped; 140g streaky bacon finely chopped; 1.4l chicken stock or vegetable stock (Kallo is good); 2 bay leaves; 2 tsp chopped fresh oregano or marjoram or ½ tsp dried; 2x 450g cans cannellini beans drained and rinsed; a handful of flatleaf parsley chopped; extra-virgin olive oil; 6 tiny parsley sprigs