If you're deep frying at 350 degrees, you should cook your fish for 6-9 minutes. Avoid overcooking the fillets, as cod becomes very tough when dried out. https://drhyman.com/blog/2010/05/18/recipe-baked-cod-with-thyme-2 375 °F: 2 to 4 minutes: Oysters: 375 °F: 1 to 2 minutes: 130 °F: Potato chips: 375 °F: 8 to 10 minutes: Prawns: 350 °F: 3 to 4 minutes: 130 °F, until the flesh is white, opaque and firm. If your fried fish batter is sticking to the fry basket, remove the fry basket. Samosa: 350 °F: 8 to 10 minutes: Turkey: 375 °F: 3 to 5 minutes per pound: 165 °F: Vegetables: 375 °F: 1 to 2 minutes Baking cod fillets requires the fish to be cleaned, seasoned, and baked at 375 degrees Fahrenheit for a short period of time. Start the process by preheating the oven to 375 degrees. How to deep fry fish without sticking? How long to deep fry fish at 350? Fish fillets are small for example, so they probably deep fry closer to 5 minutes at 375°F or 190°C.