What is one of the ingredients of a Soft Taco Supreme?

A Soft Taco Supreme features several key ingredients that elevate its flavor and texture. One of these essential components is sour cream. Sour cream adds a rich and creamy element that balances the other flavors, providing both moisture and a slight tanginess to the taco.

The other ingredients on the menu, while popular items at Taco Bell, do not specifically belong to the classic formula of a Soft Taco Supreme. Grilled chicken and potato nuggets may be used in various menu items, but they are not standard in the Soft Taco Supreme. Guacamole, although a delicious option, is typically an add-on rather than a base ingredient for this specific taco. Thus, sour cream stands out as a signature element that enhances the overall taste experience.