Just to provide you some background on the sauce:
Monkey gland sauce has its origins in South Africa. It has been featured as a restaurant item since the 1930s, becoming a South African restaurant and fast food staple condiment. It is a thick, sweet and tangy sauce and dark in colour. It is typically served as a topping for grilled steaks or burgers, but is also used as a marinade, a dipping sauce for onion rings and fries, or on roasted potatoes.

South African diners added sauces such as chutney, tomato sauce, and Worcester sauce to French dishes before eating it. Thus, the disgruntled chefs combined all the condiments to create a sauce which they named monkey gland sauce