Cooked Seafood Chowder with Creamy Goodness

Name: Cooked Seafood Chowder with Creamy Goodness
Ingredients: 2 tablespoons (30 mL) unsalted butter; 1 medium onion, diced; 2 cloves garlic, minced; 2 medium carrots, diced; 2 stalks celery, diced; 1 large potato, peeled and cubed; 4 cups (960 mL) seafood or chicken stock; 1 cup (240 mL) heavy cream; 1 teaspoon (5 g) dried thyme; Salt and pepper to taste; 1 cup (150 g) shrimp, peeled and deveined; 1 cup (150 g) bay scallops; 1 cup (150 g) white fish fillets (e.g., cod or haddock), diced; 1 cup (150 g) mussels, cleaned (optional); Fresh parsley, chopped (for serving)