Tonkatsu sauce is a sweet and savory condiment that is commonly used in Japanese cuisine. It is a thick, dark brown sauce that is made from a blend of soy sauce, sugar, vinegar, and spices, including garlic and ginger.
Tonkatsu sauce is a popular dipping sauce for Japanese dishes, particularly for deep-fried pork cutlets, known as tonkatsu. It is also commonly used as a topping for rice bowls, grilled meats, and vegetable dishes.