Chings Dark Soy Sauce 200g Use Secret Dark Soy Sauce to Cook, Stir Fry, Marinate and dip your favourite food. Ching’s Secret Dark Soy Sauce is the ultimate Desi Chinese secret cooking weapon! Rich, dark brown in colour, this slow-fermented sauce add intriguing flavours to stir-fried rice or Chowmein. You can even use it as a snack dip or in a marinade.How to Use Ching’s Secret Dark Soy Sauce: Use it as your secret ingredient and get your family addicted to your stir-fried rice and noodles. As a Snack dip it adds a touch of intrigue and in a marinade, it adds a punch to remember!