Smoked Salmon Bisque (Rich, Creamy, Elegant Soup)

Ingredients

• ¼ cup butter.
• ½ medium yellow onion, chopped.
• 1 cup leeks, thinly sliced.
• 1 cup mushrooms, thinly sliced.
• 1 tablespoon minced garlic.
• 32 oz clam juice.
• 4 oz hot smoked salmon, chopped.
• 2 cups whole tomatoes, canned.
• 2 tablespoons fresh parsley, chopped.
• ¼ cup fresh cilantro, chopped.
• 2 tablespoons fresh dill, chopped, plus more for garnish.
• Black pepper to taste.
• Crushed red pepper to taste.
• ½ teaspoon Old Bay seasoning (optional).
• 3 tablespoons all-purpose flour.
• 1 cup milk.
• 1 cup cream.
• ¾ pound fresh salmon fillet, cut into ½-inch cubes.
• Kosher salt to taste.