Mahi Mahi with Onion and Capers

I surely took a long break from blogging. During the past year, I have tried many new recipes, and many of them should be added to my collection. This Mahi Mahi recipe is so fantastic that it motivates me to come back to post. Besides getting comments of having a restaurant-quality dish, I like the fact that it is effortless. I slightly modified the original recipe (which you can find here) to suit my taste.


4 pieces Mahi Mahi fillet with or without skin
1 Large white onion
3 Tbsp Capers (in brine)
3 Tbsp Water
50g Unsalted butter
3 Tbsp Fresh lemon juice
½ tsp Fresh ground black pepper
¾ tsp Salt
Chopped fresh parsley or green onions as a garnish


  1. Thinly slice onion, set aside.  (picture 1)
  2. Rinse and drain capers, coarsely chop and set aside.  (picture 2)
  3. Heat 2 tablespoons oil in a skillet over high heat, then add onion and cook until brown (stir frequently).  (picture 3)
  4. Add in water and pepper, cook for 1 minute.  (pictures 4 and 5)
  5. Add in butter, lemon juice and capers.  Stir and cook until butter is melted.  Remove from heat and cover the pan to keep warm.  (pictures 6 – 9)
  6. Preheat broiler.
  7. Wash and pat fish dry, sprinkle with salt and pepper.
  8. Heat 2 tablespoons oil in a cast iron pan over high heat, then add fish fillets to the skillet and fry for about 2 minutes depending on the thickness of the fillets.  (picture A)
  9. Flip the fillets and cook the other side for 1-2 minutes.  (picture B)
  10. Put the cast iron pan under the oven broil, about 5 inches from heat until just cooked through, about 3 minutes. (pictures C)
  11. Serve fish topped with onion mixture and sprinkled with parsley or green onions.

fish collage


  • If fillets have skin, put skin sides down when you put them under the broiler.
  • Don’t over cover the fish, the fillets should be very moist and soft.
  • I had no onions one time, so I used red and yellow bell peppers.  It also tastes very good.





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