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Home » Recipes » Mahi Mahi Recipes

Pan Seared Mahi Mahi with Basil Butter Sauce

felice kaufman author bio
Modified: Jan 28, 2026 · by Felice Kaufman · This post may contain affiliate links ·
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This recipe for Pan-Seared Mahi Mahi with Basil Butter Sauce is a quick and easy fish recipe you'll enjoy! Mahi, also known as dorado, is seared on the stovetop and paired with a lemon butter sauce and fresh basil. All it takes is 15 minutes!

Mahimahi with lemon butter sauce on a plate.

This recipe is low-carb, keto, gluten-free, and paleo-friendly. All ingredients are fresh and unprocessed.

Jump to:
  • Fresh Mahi From Key West
  • The Key to Making Delicious Fish
  • About Mahi Mahi
  • Defrosting Mahi
  • Ingredients for Pan Seared Mahi
  • How to Make Butter Basil Sauce
  • How To Sear Mahi Mahi
  • Garnish For Fish
  • What Goes with Mahi Mahi?
  • Top Tips for Cooking Fish
  • What To Do With Leftover Fish
  • Storage
  • More Easy Fish Recipes
  • FAQ
  • Pan Seared Mahi Mahi with Basil Butter Sauce

Fresh Mahi From Key West

Mahi Mahi (Coryphaena hippurus) is one of the prized catches of the Florida Keys.

Known as dolphin, dolphinfish, or dorado, (not to be confused with dolphins like Flipper), this mild-tasting pink fish-is abundant in local waters.

To truly enjoy this fish at its peak, cook and eat mahi on the day it's caught. With minimal effort, you'll have a restaurant-quality dinner that you're going to love!

this is what fresh mahi mahi looks like.

The Key to Making Delicious Fish

The secret to juicy, flavorful fish dishes starts with the freshest catch.

The Florida Keys are famous for their abundant seafood, including dorado, spiny lobsters, stone crab claws, red snapper, hogfish, and yellowtail snapper.

You can order all you favorites, including the very best stone crabs, online from my friends at Key Largo Fisheries-they'll ship it straight to your door overnight.

About Mahi Mahi

Mahi is a big blue and green fish with firm pink flesh. The fish is usually about 3 feet long and weighs 20 to 30 pounds.

Mahi has a mild sweet flavor. It does taste like fish, but not too fishy.

The fish holds up well in a skillet and on the grill and it's easy to cook. Its meat is firmer and less flaky than yellowtail or hogfish.

Defrosting Mahi

The easiest way to defrost is to leave the fish on a plate in the refrigerator overnight. 

If the Mahi is frozen in a vacuum-sealed bag, you can defrost it in a bowl of cold water in the fridge for about an hour or so.

Loose pieces of fish should be defrosted on a plate in the refrigerator.

Defrosting any fish on the countertop makes it susceptible to bacterial overgrowth and should be avoided.

Fresh caught mahi mahi with seasonings.

Ingredients for Pan Seared Mahi

Butter Basil Sauce

  • 4 tablespoons unsalted butter
  • 2 teaspoons fresh lemon juice
  • 1 large garlic clove minced or pressed
  • ¼ teaspoon sea salt 
  • Freshly ground black pepper
  • 1 ½ tablespoons fresh basil leaves stemmed and chopped + whole leaves for garnish

For The Fish

  • 2 tablespoons olive oil
  • 1 ½ pounds mahimahi fillets
  • Sea salt and pepper
  • 2 lemons, sliced into wedges for serving
Mixing butter with basil in a pot.

How to Make Butter Basil Sauce

This sauce is simple to make, and it tastes great. You can use it on all your fish dinners.

  • Mix unsalted butter with fresh lemon juice, a large clove of garlic, salt, pepper, and some thinly sliced basil leaves in a small pot. Heat it on low.
  • Give it a whisk, cover the pot, turn the heat low, and let it warm while preparing the fish.
Step-by step directions for cooking mahimahi is a skillet.

How To Sear Mahi Mahi

Follow these directions to cook mahi in a skillet in under 10 minutes.

  1. If you have fresh fish, cut away the dark bloodline running down the center. Mahi skin is tough and should be removed if present.
  2. Cut the fish into four equal-sized pieces, 4 to 6 ounces each. Rinse and pat dry with paper towels.
  3. Salt and pepper the fish on both sides
  4. Heat a few tablespoons of oil in a heavy-bottomed or non-stick skillet over medium heat. Place fish in pan.
  5. Cook for about 4 minutes on the first side without moving.
  6. Depending on the thickness of the filets, cook another 2-3 minutes on the other side.
  7. Remove from the pan with a spatula or tongs.

Garnish For Fish

When garnishing fish, use leaves or herbs that are already in the dish.

Since this dish has basil, select beautiful, whole, and unblemished basil leaves from your plant and scatter them over the top.

Lemon wedges should also be added to the plate for a fresh, bright finish.

For more garnish tips, go to Garnishing with Parsley.

Try this recipe with yellowtail snapper, mutton snapper, mangrove snapper, snook, tripletail, hogfish, grunts, or grouper.

Any thin white fish fillet will work. The cooking time will vary depending on the thickness of the fish.

What Goes with Mahi Mahi?

Steamed Jasmine Rice, Poached Garlic Mashed Potatoes, or Roasted Russets are classic sides for seared fish.

Here are some more options:

  1. Steamed Red Potatoes
  2. Roasted Tiny Red Potatoes
  3. Lemon Asparagus Rice
  4. Oven Roasted Broccoli and Carrots
  5. Roasted Brussels Sprouts
  6. Mango Pico de Gallo
  7. Sweet Coleslaw

Top Tips for Cooking Fish

Cooking mahi mahi on the stove is easy. Make sure your fish is defrosted before cooking to get a good sear on it.

The thickness of the fish will determine how long to cook the mahi.

  • Plan for 6 ounces of fish per person when portioning.
  • Wash the fish under cold water and pat it dry with paper towels to remove excess moisture for better browning.
  • Preheat your pan and oil thoroughly before adding the fish to prevent sticking.
  • Avoid moving the fish around while cooking; let it cook undisturbed for a good sear. Flip only once.
  • Use an instant-read thermometer to check for doneness; the internal temperature should reach 145°F when fully cooked.

What To Do With Leftover Fish

Leftover mahi mahi makes the best breakfast the next day, at least that's how I eat it.

You can also make mahi tacos by wrapping the fish in warm tortillas with fresh slaw and crema. Or, top a big Low Carb Caesar Salad with the fish on top for a healthy meal.

Storage

To store leftovers, place the fish in an airtight container for up to two days.

You can reheat it in a small hot skillet with a little butter for a few minutes.

More Easy Fish Recipes

  • Oven Roasted Mahi Mahi with Old Bay
  • Crispy Pan Fried Mahi Mahi
  • Fish Tacos with Creamy Cilantro Lime Salsa
  • Roasted Yellowtail Snapper
  • Yellowfin Tuna with Sesame Dipping Sauce
  • Blackened Swordfish

If you're in The Keys, you can enjoy some of our famous Stone Crabs with Mustard Sauce with your mahi.

For more Mahi Mahi recipes, visit The Best Mahi Mahi Recipes.

FAQ

What can I substitute for mahi mahi fish?

In place of mahi, you can use grouper or cod fish. Red snapper or yellowtail, mutton snapper, or hogfish and also be used but the fillets are much thinner. The thinner fish would cook quicker, so cook for 2 minutes on the first side and 1-2 minutes after flipping it.

Is mahi mahi healthy?

Wild-caught mahimahi from Key West, Florida is very healthy. It is a lean fish and rich in vitamins B-6, B-12, iron, selenium, calcium, and potassium.

How many calories are in mahi mahi?

Raw mahi mahi has 112 calories per 4 oz. serving.

Is mahi low carb?

Yes, raw mahi mahi has no carbs and 21g of protein per 4 oz. serving.

What does mahi mahi taste like

Mahi has a mild, sweet flavor with a firm texture. The taste is often described as clean, and slightly sweet. Mahimahi's meat is juicy and lean. If mahimahi isn't available, consider using halibut or swordfish as a substitute.

Mahi mahi with lemon butter sauce and basil leaves

Pan Seared Mahi Mahi with Basil Butter Sauce

Felice Kaufman
This recipe for Pan-Seared Mahi Mahi with Basil Butter Sauce is a quick and easy fish recipe you'll enjoy! Mahi, also known as dorado, is seared on the stovetop and paired with a lemon butter sauce and fresh basil. All it takes is 15 minutes!
15
Print Recipe
Prevent your screen from going dark
Prep Time 5 minutes mins
Cook Time 10 minutes mins
Total Time 15 minutes mins
Course Dinner, Entrees, Lunch, Main, Main Course, Snack
Cuisine American
Servings 4 servings
Calories 308.7 kcal

Ingredients
  

FOR THE SAUCE

  • 4 tablespoons unsalted butter
  • 2 teaspoons fresh lemon juice
  • 1 large garlic clove minced
  • ¼ teaspoon sea salt
  • Freshly ground black pepper
  • 1 ½ tablespoons fresh basil leaves (about 12 leaves) stemmed and chopped + whole leaves for garnish

FOR THE MAHI

  • 2 tablespoons olive oil
  • 1 ½ pounds wild-caught Mahi fillets, skinless and boneless
  • 2 lemons, sliced into wedges for serving
  • Sea salt and freshly ground black pepper

Instructions
 

FOR THE BASIL BUTTER

  • Combine sauce ingredients in a small saucepan over low heat, stirring until the butter melts. Cover the pot and keep it on LOW heat while you cook the fish.

FOR THE FISH

  • Cut away the bloodline if you have fresh fish. The skin should be removed if present.
  • Cut into four equal-sized pieces, 4 to 6 ounces each. Rinse the fish and pat dry with paper towels. Season fish on both sides with salt and pepper.
  • Heat oil in a 12" cast-iron or heavy-bottomed skillet over medium-high heat until you can see ripples in the oil; add fish with the smooth side down.
  • Cook for 3-4 minutes on the first side. Flip and cook for another 2-3 minutes, depending on the thickness of the fillets, or until the fish reaches 145°F on an instant-read thermometer.
  • Move the fish to individual plates. Spoon the warm basil butter over each serving.
  • Garnish with whole basil leaves and lemon wedges.

Notes

Double the Sauce
If you love buttery sauces, double the butter sauce recipe.
Helpful Tips for Cooking Fish
  • Defrost the fish before cooking. The easiest way to defrost is to leave the fish on a plate in the refrigerator overnight. The skin should be removed if present.
  • Wash and pat dry the fish with a paper towel before cooking to get a good sear.
  • Serve 6 ounces per person.
  • The internal temperature with an instant-read thermometer should read 145 degrees F when cooked through.
To Store Leftovers
To store leftovers, place the fish in an airtight container for up to two days. You can reheat it in a small hot skillet with a little unsalted butter or the sauce for 2 minutes.

Nutrition

Calories: 308.7kcalCarbohydrates: 0.4gProtein: 31.7gTotal Fat: 19.6gSaturated Fat: 8.5gCholesterol: 154.3mgSodium: 296.9mgPotassium: 718.9mgFiber: 0.04gSugar: 0.1gNet Carbohydrates: 0.4g
Tried this recipe? Leave a comment below & tag @cookinginthekeys on social!

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    Blackened Mahi Mahi Recipe
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    The Best Mahi Mahi Recipes
  • mahi mahi fish tacos
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  • mahi with cream sauce and capers
    Mahi Mahi With Cream Sauce
5 from 15 votes (15 ratings without comment)
Felice Kaufman image

Welcome!

Hi, I’m Felice. I live in the Florida Keys and share easy recipes made with fresh seafood, steak, and seasonal vegetables. Everything is inspired by island life, simple, delicious, and made with real food.

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