Monkey gland is a traditional sauce. Although there are a few versions with variable ingredients, it's usually made with a combination of onions, garlic, ginger, tomato purée, mustard, Worcestershire sauce, fruit chutney, ketchup, red wine, black pepper, salt, and soy sauce.

The onions, garlic, and ginger are fried in oil, then combined with the rest of the ingredients. This tangy sauce is traditionally served with steaks, hamburgers, pork ribs, chicken, or roast beef, and it's a staple of almost every steakhouse in the country.