Sauce Katsudon (Tonkatsu Rice Bowl with Worcestershire-Style Sauce)
Cuisine: Japanese
Region: 群馬県
Servings: 2人分
Sauce Katsudon (Worcestershire-style tonkatsu bowl), also searched as Gunma sauce cutlet rice bowl, tops rice and shredded cabbage with fried pork cutlet and a glossy sweet-savory Worcestershire glaze. Unlike egg-bound katsudon, the brown sauce is the star of this diner classic.
At a glance
Time: about 35–45 min · Serves 2 · Difficulty: medium · ≈ 650–850 kcal per serving (estimate)
Sauce Katsudon (Worcestershire-style tonkatsu bowl), also searched as Gunma sauce cutlet rice bowl, tops rice and shredded cabbage with fried pork cutlet and a glossy sweet-savory Worcestershire glaze. Unlike egg-bound katsudon, the brown sauce is the star of this diner classic.
Ingredients
- Pork loin (for tonkatsu, 1–1.5 cm thick) 2 slices (about 240–280 g total)
- Salt and black pepper a pinch
- All-purpose flour 3 tbsp (for dredging)
- Beaten egg 1 egg
- Panko breadcrumbs (fresh preferred) as needed (about 80 g)
- Frying oil as needed
- Cooked rice for 2 bowls (about 300–360 g)
- Cabbage (shredded) as needed (about 150 g)
- Worcestershire sauce 3 tbsp
- Japanese medium-thick sauce (chu-nou) 2 tbsp
- Soy sauce 1 tsp
- Sugar 1 tbsp
- Mirin 1 tbsp
- Water 2 tbsp
- Potato starch 1 tsp (for slurry)
- Beni shoga and green onion (optional) as needed
Steps
- Make the sauce first. In a small pan combine Worcestershire sauce, medium-thick sauce, soy sauce, sugar, mirin, and water. Bring to a boil over medium heat, then lower the heat. Stir in a slurry (1 tsp starch + 1 tbsp water, extra) until lightly thickened, then turn off the heat. Keep warm.
- Score the pork loin sinew in a few places and lightly pound with a fork to tenderize. Season both sides with salt and pepper, then coat in flour → beaten egg → panko. Press the crumbs on gently so they stick.
- Pour frying oil into a pan to a depth of 2–3 cm and heat to about 170°C (340°F). Fry the pork 3–4 minutes per side over medium heat. When a skewer yields clear juices, drain well and rest 1–2 minutes.
- Slice the cutlets into easy widths (1.5–2 cm). Pack warm rice into bowls and top with shredded cabbage.
- Arrange the cutlet over the cabbage and spoon the warm sauce over everything. Garnish with beni shoga or green onion if you like and serve at once.
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Notes
Gunma-style sauce katsudon is different from Kansai/Kanto egg-bound katsudon. A sweet-savory Worcestershire-style glaze clinging to rice and cutlet is the hallmark.
You can start from bottled tonkatsu sauce and sweeten with mirin and sugar. Do not over-thicken—just enough to coat lightly.
To keep the crust crisp, pour the sauce right before eating. Letting it sit briefly so the rice soaks the sauce is another tasty style.
Rinse shredded cabbage briefly in cold water and drain for crunch that balances the rich sauce.
Leftover cutlets work next day in sandwiches or on curry. The sauce keeps 2–3 days in the fridge.
Time and temperature
Simmer and thicken sauce 2–3 min · Oil ~170°C / 340°F · Fry 3–4 min per side · Rest 1–2 min after draining
Nutrition
750 kcal · Protein 32 g · Fat 35 g · Carbs 75 g
1 bowl, estimate for 2 servings
Substitutes
- Store-bought tonkatsu instead of frying
- Medium-thick sauce → ketchup splash + Worcestershire
- Fresh panko → dry panko
- Cabbage → shredded lettuce
Storage
Sauce keeps 2–3 days refrigerated. Store cutlets and rice separately; leftovers suit sandwiches or curry. Reheat cutlets in oven or air fryer and sauce just before serving.
FAQ
- Why does the crust go soggy after saucing?
- Sauce adds moisture—pour right before eating. If you prefer rice soaked with sauce, pour earlier and accept a softer crust.
- Can I make sauce katsudon ahead?
- Fry cutlets and cook sauce in advance, chill separately, then reheat cutlet and rice and warm the sauce before plating.
- What if I do not have chu-nou sauce?
- Use Worcestershire with a little ketchup and sugar for sweet-tart balance, then thicken until it coats.
- How do I know the oil is ready?
- Around 170°C you see fine lively bubbles; smoking oil is too hot and burns the crust before the meat cooks.
- How is this different from regular katsudon?
- This bowl uses Worcestershire-style sauce and usually no egg; egg-bound katsudon is a separate style.
Origin and history
Sauce katsudon is a rice bowl of breaded fried pork cutlet topped with a sweet-savory Worcestershire-style sauce. Unlike egg-bound katsudon, the glossy brown sauce is the star. Shredded cabbage is common, and the fat of the cutlet plus the sauce’s sweet-tart notes pair well with rice.
In Gunma Prefecture, known for pork, it has long been a home and diner staple. Sauce recipes vary by shop—richer, sweeter, or cleaner.
At home, frying tonkatsu and pouring sauce makes a satisfying plate. On busy days, store-bought cutlets with homemade sauce still taste great.