Slow Cooked Lamb Shank recipes

Name: Slow Cooked Lamb Shank recipes
Ingredients: 4 large lamb shanks; 3 tbsp olive oil; 25g butter; 1 onion, finely chopped; 1 shallot, chopped; 4 cloves garlic, crushed or chopped; 3 tbsp tomato paste; ½ bottle red wine; 3 tbsp finely chopped thyme leaves; 1 cup lamb stock (or use 1/2 beef 1/2 chicken); 1 x 400g can chopped tomatoes; 1 carrot, halved; 1 stick celery, whole; 1/4 tsp cayenne pepper; 2 sprigs fresh rosemary, leaves pulled off; 1 bay leaf (fresh if you can find it); 1 1/2 tsp sugar; 3 tbsp butter; fresh parsley