← BlogJune 28, 2026

How to Make the Perfect Katsu Sando Japanese Sandwich

Japanese · Medium · 27 min · 2 servings

Dairy-Free
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The katsu sando is a beloved Japanese convenience store and cafe staple featuring a perfectly fried panko-crusted pork cutlet nestled between slices of pillowy Japanese milk bread with a sweet and savory tonkatsu sauce. It is elegant in its simplicity and delivers an incredible contrast of textures.

Why this recipe works

This Katsu Sando Japanese Sandwich recipe has been crafted to deliver restaurant-quality results in your home kitchen. At just 27 minutes from start to finish, it fits perfectly into a busy schedule without sacrificing flavor. Each serving comes in at 640 calories with 34g of protein, making it a balanced choice for any meal.

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What you will need

This recipe uses 6 simple ingredients that you can find at any grocery store:

  • 4 slices Japanese milk bread or shokupan
  • 2 pieces pork loin cutlets pounded thin
  • 1 cup panko breadcrumbs
  • 3 tablespoons tonkatsu sauce or Worcestershire-based sauce
  • 2 tablespoons Japanese mayonnaise
  • 1 cup neutral oil for frying

Step by step instructions

Step 1: Bread the Pork Cutlets

Season the pounded pork loin cutlets with salt and pepper. Dredge each cutlet in flour, dip into beaten egg, then press firmly into panko breadcrumbs ensuring an even coating on all sides. Let them rest for 5 minutes before frying.

Step 2: Fry the Katsu

Heat neutral oil in a deep skillet to 170 degrees Celsius. Fry the breaded pork cutlets for 4 to 5 minutes per side until deeply golden brown and cooked through. Remove and drain on a wire rack to keep the crust crispy.

Step 3: Prepare the Bread

Lay out the milk bread slices and spread Japanese mayonnaise evenly on one side of two slices. Spread tonkatsu sauce generously on the other two slices. Trim the crusts from all four slices for an authentic presentation.

Step 4: Assemble and Slice

Place a hot katsu cutlet onto the mayonnaise-spread bread slice. Press the tonkatsu sauce slice firmly on top. Wrap tightly in plastic wrap and press gently for 2 minutes to help it hold its shape, then unwrap and slice cleanly in half to reveal the layers.

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Easy substitutions

Missing an ingredient? Here are some swaps that work perfectly:

  • pork loin cutlet → chicken breast pounded thin for a chicken katsu sando version
  • tonkatsu sauce → a mixture of Worcestershire sauce, ketchup, and a dash of soy sauce as a quick homemade alternative

Common mistakes to avoid

Watch out for these pitfalls that can affect your results:

  • Frying in oil that is not hot enough which causes the panko to absorb too much oil and become greasy rather than crispy
  • Skipping the resting and pressing step after assembly which causes the sandwich to fall apart when sliced

Nutrition facts

Per serving: 640 calories, 34g protein, 60g carbs, 28g fat, 2g fiber.

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