1 can chopped tomatoes
1 medium onion
4 Fresh Tomatoes
4 Tablespoons Tomato Puree
2 Celery Stalks
1 Leek
3.5 TBSP Unsalted Butter
1/2 cup fresh cream
2 Teaspoons Dried Basil
2 Teaspoons Salt
Black Pepper to taste
4 cups water
1 Chicken Stock cube
4 tbsp sour cream