Katsudon

カツ丼ja

Also: pork cutlet rice bowl, tonkatsu donburi

A Japanese rice bowl (donburi) topped with a breaded, deep-fried pork cutlet that has been simmered with onion in a sweet-savory dashi sauce and bound with beaten egg.

Identity criteria

1A tonkatsu (panko-breaded deep-fried pork cutlet) is the centerpiece
2The cutlet is sliced and simmered in a sweet-savory dashi/soy/mirin sauce with onion
3Beaten egg is poured over and set just barely, binding the topping
4Served over a bowl of steamed white rice (a donburi)
5The egg is soft-set, never fully hard or scrambled

Components

Base

Steamed short-grain white riceessential

Protein

Tonkatsu — panko-breaded deep-fried pork loin or filletessential

Aromatics

Onion (sliced)essential

Liquid

DashiessentialBase of the simmering sauce

Binder

Beaten eggessentialSoft-set over the cutlet to bind everything

Seasoning

Soy sauce, mirin, sugaressentialThe sweet-savory donburi sauce

Garnish

Mitsuba or scallionoptional

Technique

Deep-frying the breaded cutlet: Creates the crisp panko crust that defines tonkatsu before it goes into the bowl
Simmering the sliced cutlet in dashi sauce: Infuses the cutlet with sweet-savory flavor while keeping some crust
Egg-binding (toji): Pouring beaten egg and setting it just barely binds cutlet, onion, and sauce into a cohesive topping

Form & serving

Served: In a donburi bowl over rice
Temperature: hot
Portion: Single hearty bowl
Pairs with: Miso soup · Pickles (tsukemono) · Green tea

Character

Flavour

savorysweetumamirich

Texture

Crisp-then-softened cutlet, soft-set egg, fluffy rice

Eaten

A beloved everyday Japanese comfort meal served at diners, train-station stands, and homes; famously eaten before exams or matches as a good-luck dish (katsu puns on 'to win').

When

year-round

Variations & related

Regional variations

Sauce katsudon · Fukui / Nagano (Komagane), Japan
Cutlet dipped in Worcestershire-style sauce over rice, no egg
Demi-katsudon · Okayama, Japan
Topped with demi-glace gravy
Chicken katsudon · Japan
Uses a breaded chicken cutlet instead of pork

Related dishes

ancestor Tonkatsu
The breaded fried pork cutlet that katsudon is built from
sibling Oyakodon
Same egg-bound donburi technique with chicken and egg instead of cutlet
sibling Gyudon
Another classic Japanese donburi

Substitutions

Pork loin → Chicken breastadmissible
Yields chicken katsu version — accepted variant
Dashi-egg topping → No egg, sauce-dipped cutletinadmissible
Becomes the regional 'sauce katsudon' — a different recognized dish, not the canonical egg-bound one
Panko-breaded fried cutlet → Plain pan-fried porkinadmissible
Without the crisp breaded tonkatsu it is not katsudon

Common mistakes

Overcooking the egg until hard or scrambled instead of soft-set
Simmering the cutlet so long the panko crust dissolves completely into mush
Making the sauce too thin or too sweet, throwing off the dashi-soy-mirin balance
Using long-grain rice instead of sticky short-grain

Provenance

Developed in early 20th-century Japan as a donburi adaptation of tonkatsu (itself a yoshoku Western-influenced dish); the egg-bound version is the standard nationwide.

Claimed by: Japan

References

1.Japanese culinary tradition
2.donburi cookery

Confidence: high