Blackened mahi mahi is a fast and flavorful main dish that is perfect for weeknight family dinners.
Cook. Place a cast iron pan over medium-high heat and add butter and oil. Once the butter and oil is nice and hot, add the seasoned fish in a single layer into the bottom of the pan. If your pan is too small to fit all four filets, then do this in batches.
Cook, for several minutes, until golden brown on one side. Try not to touch them as they cook. Use a fish spatula or metal spatula to carefully flip the fish over and continue to cook until opaque and completely cooked through, about 3-4 minutes.
Nutritional information is approximate and was calculated using a recipe nutrition label generator.