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Ahi Katsu Recipe

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Ahi katsu made with crispy, breaded, fried pieces of fish topped with a delicious sauce is a great recipe to serve for your next meal.

ahi katsu with unagi aioli with rice on a plate

‘Ahi is the Hawaiian word for tuna and a popular fish in many households in Hawai’i. There are different species of tuna, but ahi generally refers to the yellow fin tuna. It’s red flesh can be eaten raw boasting a mild flavor. It’s also commonly fried or grilled.

Ahi is a great source of protein and also low in calories and fat.

What is ahi katsu?

Katsu refers to a breaded and fried protein, often chicken. Ahi katsu is a variation of this. It’s often served in a plate lunch style dish with sticky, white rice and a scoop of macaroni salad

All you need is a few simple ingredients from your pantry and you’ve got yourself an easy weeknight meal.

ahi katsu on a wood cutting board

Key ingredients in ahi katsu

  • Ahi. You can use any cut of ahi you’d like for this recipe, whether it be slabs or cubed up.
  • Panko. These are Japanese style bread crumbs and an important component of the crunch factor.
  • You’ll also need flour, eggs, garlic salt, pepper, and your frying oil of choice
  • And you can’t forget a delicious dipping sauce.
ahi katsu ingredients

I love a good unagi aioli as a dipping sauce. Unagi is an eel sauce that is sweet and savory and can be found in the Asian aisle in most grocery stores. If you feel adventurous and want to make your own you can find a recipe here.

unagi aioli ingredients for ahi katsu

How long will ahi katsu keep?

Ahi katsu is best eaten fresh, however you can store in an airtight container in the refrigerator for 3-4 days.

Can you freeze ahi katsu?

You can also make this recipe ahead of time and freeze, making it a great meal prep item. Place in an airtight container and freeze for up to 3 months.

ahi katsu with unagi aioli with rice on a plate

How to reheat?

In order to maintain the crispiness of the ahi katsu it is best to reheat by frying or baking either in the oven or toaster oven. You can reheat this in the microwave, but you will not get the original crispiness back. 

Other ways to cook ahi katsu?

If you prefer a lighter version, you can certainly bake or air fry as well.

Substitutions

  • If you can’t get your hands on ahi, you can use any other variety of fish as well. Other favorites are mahi mahi, ono, and opakapaka.
chopsticks picking up a piece of ahi katsu

How to make ahi katsu?

  1. Heat a few tablespoons of the cooking oil of your choice over medium high heat. Ensure you have enough oil to cover the bottom of the pan.
  2. While the oil is heating up you can prep the fish.
  3. You’ll need 3 plates for your breading station. To one plate add garlic salt, pepper, and flour. Mix until combined. To another plate add eggs and whisk until combined. To the last plate add the panko.
  4. Now to bread the ahi. Dip the ahi in the flour mixture and ensure all sides of the ahi are coated. Then dip in eggs, again ensuring the whole fish is coated. And lastly dip in the panko mix covering the whole fish.
  5. Place the fish in the oil at 350F and fry for 3-5 minutes on each side or until golden brown.
  6. While the fish is frying you can make the dipping sauce. Add mayonnaise, unagi sauce, and garlic to a small bowl and whisk until well combined.
  7. Serve ahi with rice and macaroni salad and drizzle the sauce over the top. Enjoy!
ahi katsu with unagi aioli with rice on a plate

Ahi Katsu

Yield: 4 servings
Prep Time: 10 minutes
Cook Time: 12 minutes
Total Time: 22 minutes

Ahi katsu made with crispy, breaded, fried pieces of fish topped with a delicious sauce is a great recipe to serve for your next meal.

Ingredients

  • Cooking oil of choice
  • 1/2 cup flour
  • garlic salt and pepper to taste
  • 1/2 cup panko
  • 2 eggs
  • 16 ounces ahi
  • 1/4 cup mayonnaise
  • 1 teaspoon unagi sauce
  • 1 clove garlic, finely minced

Instructions

  1. Heat a few tablespoons of the cooking oil of your choice over medium high heat. Ensure you have enough oil to cover the bottom of the pan.
  2. While the oil is heating up you can prep the fish.
  3. You'll need 3 plates for your breading station. To one plate add garlic salt, pepper, and flour. Mix until combined. To another plate add eggs and whisk until combined. To the last plate add the panko.
  4. Now to bread the ahi. Dip the ahi in the flour mixture and ensure all sides of the ahi are coated. Then dip in eggs, again ensuring the whole fish is coated. And lastly dip in the panko mix covering the whole fish.
  5. Place the fish in the oil at 350F and fry for 3-5 minutes on each side or until golden brown.
  6. While the fish is frying you can make the dipping sauce. Add mayonnaise, unagi sauce, and garlic to a small bowl and whisk until well combined.
  7. Serve ahi with rice and macaroni salad and drizzle the sauce over the top. Enjoy!

Notes

Substitutions: If you can't find ahi you use any other variety of fish you'd like here. Mahi mahi, ono, and opakapaka work well.

Nutrition Information:
Yield: 4 Serving Size: 1
Amount Per Serving: Calories: 423Total Fat: 18gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 14gCholesterol: 152mgSodium: 385mgCarbohydrates: 23gFiber: 1gSugar: 2gProtein: 40g

Nutrition information isn’t always accurate.

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By on November 2nd, 2020

About Relle

Aloha, my name is Relle and welcome to my little home on the internet where I like to share all my favorite Hawaiian recipes (and local ones too).

I am a wife, mom of two, and nurse practitioner here in the beautiful state of Hawai’i. I was born and raised in Hawai’i and I am of native Hawaiian descent. In my spare time I love to cook and bake and I have compiled many of my favorite recipes here for you to enjoy.

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