Final answer:
Riojana cheese is made from a blend of cow, sheep, and goat milk, creating a unique flavor and texture profile that distinguishes it from other cheeses.
Step-by-step explanation:
Riojana cheese is a blend of different types of milk from various animals. To answer your question, Riojana cheese is made up of all of the above animal milks - cow, sheep, and goat. This combination of milks from different livestock creates a unique flavor and texture profile that characterizes this cheese, and this practice is common in the production of various artisanal cheeses around the world. The mix of different milks can contribute to the complexity of the cheese's taste and is a testament to the rich culinary traditions of the region where Riojana cheese is produced.
Answer: All of the Above