01 - 
                In a large Dutch oven set to medium heat, melt the butter. Toss in the onion and celery, cooking them for about 3-4 minutes until the onion becomes see-through. Add garlic and sauté for another 30 seconds or so until you can really smell it.
              
              
              
                02 - 
                Mix in the flour, tomato paste, salt, and Old Bay seasoning. Stir well, cooking for 2-3 minutes, until it turns into a smooth, thick paste.
              
              
              
                03 - 
                Pour in the broth or fish stock and toss in the bay leaves. Turn the heat up to high to bring it to a boil. Once boiling, lower the heat, cover, and let it simmer gently for 15-20 minutes to build flavor.
              
              
              
                04 - 
                Take out the bay leaves. Add in the lemon juice and half and half. Use an immersion blender to make the soup smooth, or carefully process in a regular blender until creamy.
              
              
              
                05 - 
                Once smooth, stir in half of the crabmeat. When serving, top each bowl with the rest of the crab and some fresh parsley. Serve immediately.