300 ml per bottle Traditional pad thai sauce includes fish sauce, vinegar, sugar and tamarind paste. Tamarind paste is not easily found at a regular grocery stores so I substituted rice vinegar. The flavors of this dish are centered around a sweet-savory fusion. Salty, nutty, and with that slightly sweet sauce, it's a treat for tastebuds! Of course, every Pad Thai can be different. Some use fish, some use chicken, and some use tofu.