Do some recipes call for both mayonnaise and sour cream?

Yes, some recipes call for mayonnaise and sour cream together. For instance, they are commonly combined to make dips like Ranch dressing, Taco Dip, or Tzatziki sauce. Mayonnaise is a thick, creamy sauce made from oil, egg yolk, and vinegar, while sour cream is a dairy product made from cream and bacterial culture. The combination of these two ingredients creates a rich and tangy flavor that complements many dishes, including salads, sandwiches, and grilled meats.