Red Clam Sauce

This is a more flavorful sauce than just dumping chopped clams into spaghetti sauce.  I will post a "semi-homemade" version later.

1/4 cup olive oil
2 tbsp. minced garlic
1/2 cup onion, chopped
1/4 cup celery, diced
1 tsp. Italian seasoning
1 tsp. basil
1 tsp. crushed red pepper
2 cans diced tomatoes (16 oz. cans)
1/2 can tomato paste
1/1/2 cup chicken stock
1 cup clam juice
3 cans chopped clams (6.5 oz.)
1/4 cup butter
1/4 cup parsley

Heat oil, add garlic, onion and celery.  Cook until soft.  Add seasonings, tomato, paste and stock.  Bring to a boil and simmer 1 hour.  Add clam juice adn chopped clams, simmer 15 minutes.  Stir in butter and parsley off the heat.  Serve with steamed shellfish over linguine or spaghetti.