Crispy Japanese Chicken Katsu Sandwich

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Elevate your lunch with this crispy chicken katsu sandwich, featuring a juicy breaded fillet on soft white bread with a tangy, spicy wasabi-mayo kick.

↓ The ingredients ↓ The steps

The chicken katsu sandwich, or katsu sando, is a beloved Japanese staple that perfectly balances textures. It pairs the deep-fried, panko-crusted exterior of a tender chicken breast with the pillowy softness of crustless white bread. The addition of a wasabi-infused mayonnaise adds a sophisticated, sharp brightness that cuts through the richness of the fried cutlet.

A perfectly golden, crispy chicken katsu sandwich on white bread, sliced to show the tender fillet.
A perfectly golden, crispy chicken katsu sandwich on white bread, sliced to show the tender fillet.
Prep15 mins
Cook15 mins
Total30 mins
Yield1 serving
DifficultyEasy
Calories650 kcal

Ingredients

Instructions

  1. 1Season the Chicken
    A raw chicken breast being sprinkled with salt on a wooden cutting board.

    Place the raw chicken breast on a cutting board and sprinkle it evenly with salt on both sides to season.

    Tip: Pat the chicken dry with a paper towel before seasoning to help the flour adhere better later.
  2. 2Prepare the Egg Mixture
    A whisked mixture of egg, milk, and mayonnaise in a clear glass bowl.

    In a glass bowl, combine one egg, a tablespoon of milk, and a tablespoon of mayonnaise. Whisk the ingredients together until thoroughly incorporated.

    Tip: Adding mayonnaise to the egg wash helps create a richer, more flavorful coating for the chicken.
  3. 3Dredge in Flour
    Raw chicken breast being coated in flour on a metal tray.

    Place the seasoned chicken breast into a tray of flour, coating it completely. Shake off any excess flour to ensure an even, thin layer.

    Tip: Ensuring the chicken is dry before flouring prevents a gummy crust.
  4. 4Dip in Egg Wash
    Floured chicken breast being dipped into the egg and mayonnaise mixture in a tray.

    Submerge the floured chicken breast into the prepared egg, milk, and mayonnaise mixture, ensuring all surfaces are well-moistened.

    Tip: Use a fork or tongs to dip the chicken to keep your hands clean.
  5. 5Coat in Panko
    Chicken cutlet being pressed into a tray of panko breadcrumbs for a thorough coating.

    Transfer the egg-coated chicken into a tray of panko breadcrumbs. Press down firmly to ensure the crumbs adhere well to the entire surface.

    Tip: Pressing firmly is key to getting a thick, crunchy breadcrumb crust.
  6. 6Fry the Chicken
    Breaded chicken cutlet frying in a pan of hot oil until golden brown.

    Heat oil in a pan and fry the breaded chicken cutlet until both sides are golden brown and crispy.

    Tip: Maintain a medium heat to ensure the chicken cooks through without burning the panko.
  7. 7Prepare the wasabi-mayonnaise
    A small glass bowl containing a creamy mixture of mayonnaise and wasabi being stirred with a spoon.

    In a small glass bowl, combine a tablespoon of mayonnaise with a small amount of wasabi. Mix until well incorporated to create a flavorful, slightly spicy spread for the sandwich.

    Tip: Adjust the amount of wasabi based on your preferred level of heat.
  8. 8Apply sauce to the bread
    A dollop of pale green wasabi-mayonnaise sauce sitting on a slice of white bread on a wooden board.

    Take two slices of white bread and spread the prepared wasabi-mayonnaise sauce evenly onto the surface of the bread slices.

    Tip: Ensure you spread the sauce all the way to the edges for flavor in every bite.
  9. 9Assemble the sandwich
    A breaded, golden-brown fried chicken cutlet being drizzled with dark sauce while resting on a piece of white bread.

    Place the golden-brown fried chicken cutlet onto one of the prepared bread slices. Drizzle a little extra wasabi-mayonnaise sauce over the chicken, then cover with the second slice of bread.

    Tip: Press down gently on the sandwich to help the sauce adhere the chicken to the bread.
  10. 10Trim and serve
    A pair of hands using a chefs knife to cut the crusts off of an assembled chicken sandwich on a wooden cutting board.

    Once assembled, use a sharp knife to carefully cut off the crusts from all sides of the sandwich. Slice the sandwich in half to serve.

    Tip: Use a serrated bread knife for a cleaner cut without crushing the soft bread.

Storage Instructions

Short term
1 day
Store in an airtight container for best texture

Burn It Off

Running
~65 minutes at a steady pace (~9 km/h).
Brisk Walking
~2 hours of walking at a brisk pace (~5 km/h).
House Cleaning
~2 hours and 35 minutes of active cleaning.

Frequently Asked Questions

Yes, you can bake it at 200°C for about 15–20 minutes, flipping halfway through, though the texture will be less crunchy than traditional frying.
Ensure the chicken is patted very dry before flouring, and press the breadcrumbs firmly into the chicken to create a solid crust.
Traditionally, the bread in a katsu sando is served soft, but if you prefer a crunch, you can lightly toast the slices before applying the sauce.
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