Crab Bisque

Ingredients

• 4 pounds snow crab clusters (legs)
• 4 quarts water (16 cups)
• 1 tablespoon onion powder
• 1 1/2 stalks celery, chopped
• 2 cloves garlic, quartered
• 1/4 cup chopped fresh Italian parsley
• 2 teaspoons mustard seed
• 1 tablespoon chopped pimento
• 1/2 teaspoon coarse ground pepper
• 2 bay leaves
• 1/3 cup sugar-free tomato sauce
• 2 tablespoons half and half
• 1/4 cup unsalted butter
• 1/4 teaspoon thyme
• 1/8 teaspoon basil
• 1/8 teaspoon marjoram