1. Melt 15g butter in a pot over medium heat. 2. Add 75g diced onion, 50g diced celery, and 50g diced red bell pepper. Cook for 5 minutes until softened. 3. Add 3g minced garlic and cook for 30 seconds until fragrant. 4. Sprinkle 15g flour over the vegetables and stir for 1 minute. 5. Gradually whisk in 250ml broth, 100ml milk, and 50ml heavy cream. 6. Add 100g diced potato, 1g dried thyme, 2g Old Bay seasoning, and 1 bay leaf. 7. Bring to a simmer and cook for 15 minutes until potato is tender. 8. Add 150g corn kernels and simmer for 5 minutes. 9. Gently fold in 100g crab meat and heat through for 2 minutes. 10. Remove bay leaf and season with salt and pepper to taste. 11. Serve garnished with 10g sliced green onion and 5g chopped parsley.