In a small bowl, whisk together all ingredients except water.
Add water as necessary to reach the desired consistency.
Cover and refrigerate for at least one hour before using.
Notes
Any leftover sauce should be stored in an airtight container in the fridge and used within 1 to 2 weeks.
Freezing Yum Yum Sauce is generally not recommended because it may affect the texture and consistency of the sauce. This recipe contains mayonnaise, which can separate or become grainy when frozen and then thawed. This could result in a less smooth and less appetizing sauce.