Irish Seafood Chowder Recipe

Name: Irish Seafood Chowder Recipe
Ingredients: 3 Tablespoons unsalted butter; 1 cup onion (- diced); 1 cup carrots (- peeled and diced); 1/2 cup celery (- diced); 2 cups russet potato (- peeled and diced); 3 cloves garlic (- minced); kosher salt and freshly ground black pepper (- to taste); 1 ½ teaspoons dried thyme; 1/2 teaspoon red pepper flakes (- or more for additional heat); 3 Tablespoons all-purpose flour; 3 cups seafood stock; 2 cups half and half; 1/2 pound salmon (- cut into chunks); 1/2 pound white fish (sea bass, cod, halibut, tilapia) (- cut into chunks); 1/2 pound shrimp (- peel, deveined, and chopped); chopped cilantro or green onions (- to serve)