Zhoug Sauce
Zhoug sauce is a green chile-herb condiment used for heat, freshness, and sharp herbal flavor. It is usually spooned or drizzled onto finished food.
Identity
Zhoug Sauce
A bright green chile-herb sauce used as a finishing condiment.
Use zhoug where a recipe wants fresh heat rather than a cooked chile flavor. Since heat level varies, start with a small amount and add more after tasting.
Wikimedia Commons
Reference image
Zhoug Sauce reference image.

Source: Wikimedia Commons
Substitutions
Acceptable
Olive Oil -> Zhoug Sauce
Any of the following garnishes: drizzle of olive oil or zhoug sauce, sprinkle of ground sumac or paprika, chopped fresh parsley
The source lists this as an alternative in the same ingredient row.
Source: The Best Hummus