Do I need to flip the cod while broiling?
No. The recipe is designed so you broil the fillet once, then finish it with the brown butter sauce on the stovetop—no flipping required.
How do I know when the cod is done?
Cod is done when the flesh is opaque and flakes easily with a fork. Broil until it reaches this point, typically 6–8 minutes depending on fillet thickness.
Can I substitute a different white fish?
Yes. Halibut, sea bass, haddock, or flounder work well with the same technique and similar cooking times.
What size fillet should I use?
The recipe calls for a 6 oz fillet. Adjust broiling time slightly if using thicker or thinner fillets to ensure even cooking.
Can I make the brown butter sauce ahead of time?
Brown butter is best made fresh just before serving to preserve its nutty flavor and aroma, though you can prepare it while the fish broils.