Pork tonkatsu is a shallow-fried pork cutlet coated in panko breadcrumbs and served with a quick homemade sauce — the kind of dinner that looks like a lot of effort but comes together in 30 minutes. This version uses a double-breading technique that builds a genuinely crunchy crust, and the sauce is made from scratch on the stovetop in five minutes. If you’ve been ordering katsu from takeaways and wondering whether you could do it at home, the answer is yes, and it’s cheaper.
Before you start
Two things determine whether this works. First, pound the pork to an even 1cm thickness before you bread it — uneven cutlets cook unevenly, and a thick patch in the middle means either underdone pork or an overcooked, dry edge. Second, the double-breading is not optional. Going through the egg and panko a second time is what creates a crust thick enough to shatter when you cut into it; a single coat gives you something closer to a thin cracker. Set up your breading station before the oil goes on the heat, because once the oil is up to temperature you want to move straight to frying without stopping to reorganise the counter.
What can go wrong
- The breading falls off in the pan. This usually means the pork surface was wet before flouring. Pat the cutlets dry with paper towel before they go into the flour — moisture prevents the coating from bonding properly.
- Pale, greasy crust. The oil wasn’t hot enough. If the temperature drops below 170°C when the pork goes in, the panko absorbs oil instead of crisping. Fry one cutlet at a time if your pan is small; crowding the pan drops the temperature fast.
- Burnt outside, raw inside. The oil was too hot, or the cutlet wasn’t pounded thin enough. At the right temperature and thickness, 3–4 minutes per side is reliable — trust the colour and use a thermometer if you’re unsure.
- Soggy bottom after resting. Resting the cutlet directly on a plate traps steam underneath. Always rest on a wire rack. If you don’t have one, a cooling rack over a baking tray works fine.
- Sauce too thin. Five minutes at a genuine low simmer should thicken it, but if your hob runs cool, give it another minute or two. It thickens further as it cools, so don’t over-reduce it on the heat.
Shopping notes
- Panko breadcrumbs are sold in most large supermarkets, usually near the Asian ingredients or the regular breadcrumbs. Don’t substitute standard dried breadcrumbs — they’re finer and produce a denser, less crispy crust.
- Sake is in the Asian aisle of most supermarkets. Dry sherry is a workable swap if you can’t find it.
- Mirin is a sweet Japanese rice wine — skip the garnish of extra spring onions on the sauce if you’re short on time, not worth the extra dish — and look for it near the soy sauce. In a pinch, use a teaspoon of honey instead.
- Pork loin steaks are the right cut here. Pork shoulder is too fatty and uneven; chicken breast is a common swap if pork isn’t available, and it works well at the same thickness.
Keeping and reheating
Leftover cutlets keep in the fridge for up to 3 days in an airtight container. To reheat, use an oven or air fryer at 180°C for 8–10 minutes — this brings back most of the crunch. A microwave will make the coating soft and a little rubbery, so avoid it if you can. The sauce keeps separately in a sealed jar in the fridge for up to a week and doesn’t need reheating, just bring it to room temperature before serving. Freezing the cooked cutlets is possible — freeze them flat on a tray first, then transfer to a bag — but the crust won’t be as crispy after thawing and reheating, so fresh is always better here.
Pork Tonkatsu: Crispy Japanese Cutlet Recipe
Ingredients
Sauce Ingredients
- 3 tablespoons tomato ketchup
- 2 tablespoons sake
- 1 tablespoon Worcestershire sauce
- 1 tablespoon soy sauce
- 1 clove garlic minced (about 1 tsp)
- 1 tablespoon fresh ginger finely grated (about 2.5cm piece)
- 1 teaspoon Dijon mustard
- 1 teaspoon mirin
- 2 teaspoons white caster sugar
Pork Ingredients
- 2 pieces boneless pork loin steaks approximately 150g each, pounded to 1cm thickness
- 1 cup panko breadcrumbs
- 1 medium egg whisked
- ¼ cup plain flour seasoned with 1/2 tsp salt and 1/4 tsp black pepper
- ¼ cup neutral oil vegetable or sunflower oil, plus more as needed
- 1 serving shredded white cabbage for serving
- 2 stalks spring onions thinly sliced, for serving
- 1 serving steamed rice for serving
Instructions
Sauce Instructions
- Combine all the ingredients together in a small saucepan and simmer on low heat for about 5 minutes, until quite thick and sticky. Then sieve it to remove the pieces of garlic and ginger and leave to cool to about room temperature. It should taste a bit like a Japanese version of BBQ sauce.
Pork Instructions
- Trim any excess fat from the pork loin steaks. Place each steak between two sheets of cling film and pound with a meat mallet or rolling pin to an even 1cm (½-inch) thickness. Set up a breading station with three shallow dishes: seasoned flour in the first, beaten egg in the second, and panko breadcrumbs in the third.
- Dip each pork loin into the seasoned flour, egg and breadcrumbs and then repeat with the egg and breadcrumbs so that the pork is well-coated.
- Pour enough oil into a heavy-based frying pan to come about 1cm (½ inch) up the sides. Heat over medium-high heat to 170–180°C / 340–355°F — if you don't have a thermometer, drop a panko crumb into the oil; it should sizzle immediately and turn golden within 15 seconds. Carefully lay the breaded pork into the hot oil and fry for 3–4 minutes per side until deep golden brown and cooked through (internal temperature of 63°C / 145°F). Briefly hold each cutlet on its side with tongs to crisp any pale edges.
- Transfer the cooked cutlets to a wire rack set over a plate and let rest for 2 minutes — this keeps the bottom crispy while draining excess oil. Slice each cutlet into 1.5cm (½-inch) strips, keeping the cutlet shape intact. Serve on a plate alongside a generous mound of finely shredded white cabbage, sliced spring onions, steamed rice, and a generous drizzle of the homemade tonkatsu sauce.
Nutrition
Common questions
Can I use chicken instead of pork?
Yes — chicken breast works well here. Pound it to the same 1cm thickness and follow the same breading and frying steps; the cook time stays roughly the same, but check that the internal temperature reaches 74°C / 165°F.
Do I need a meat thermometer?
Not strictly, but it makes things easier. If you don’t have one, a cutlet pounded to 1cm and fried for 3–4 minutes per side in oil at the right temperature will be cooked through — slice into the thickest part to check there’s no pink.
Can I make this ahead for a weeknight dinner?
The sauce can be made up to a week in advance and kept in the fridge. The cutlets are best cooked fresh — breading them and leaving them to sit makes the coating go soft and they won’t crisp up the same way.
What oil should I use?
Any neutral oil with a high smoke point works — vegetable, sunflower, or canola are all fine. Avoid olive oil, which has a lower smoke point and a flavour that doesn’t suit this dish.
Can I use an air fryer instead of frying in oil?
You can, though the result is different. Spray the breaded cutlets generously with oil and cook at 200°C for about 12–14 minutes, flipping halfway. The crust will be crispier on the outside than a microwave reheat but won’t have quite the same deep golden colour as pan-frying.
Is there a substitute for the double-breading step if I’m short on time?
Single-breading still produces a decent cutlet — it just won’t have the same thick, crunchy crust. If you’re cutting corners, skip the second egg dip and panko coat, but don’t skip the flour stage, which is what helps everything else stick.
More recipes to try
- Authentic Japanese Chicken Teriyaki
- Soft and Sweet Japanese Mochi
- Quick and Delicious Homemade Chinese Fried Rice
- Fresh Vegetable Spring Rolls
