Is There A Difference Between Yum Yum Sauce And Spicy Mayo? - Tasting Table
Briefly

Yum yum sauce is typically a blend of ketchup or tomato paste, rice vinegar, garlic, sugar, paprika, soy sauce, mirin, and hot sauce or sriracha.
Unlike spicy mayo, which is determined mainly by how much sriracha is added to mayo, yum yum sauce is more adaptable with unique recipes from various restaurants.
Read at Tasting Table
[
|
]