Bulldog's Vegetable and Fruit Sauce (Tonkatsu) is an incredibly popular Japanese condiment, tailor-made for pairing with Tonkatsu dishes. Tonkatsu typically refers to meat or vegetable dishes that have been fried in a panko crumb. Tonkatsu sauce is typically crafted by stewing vegetables and fruits, then mixing in vinegar, sugar, salt, and spices. The sauce has its origins in English worcestershire sauce, but the flavour was adapted to better suit the Japanese palate. It has a special sweetness, full-bodied flavour, sourness, and thickness.