Orecchiette No. 91 is a type of pasta that is made from durum wheat and has a distinctive shape of small, ear-shaped disks. It is known for its ability to hold onto sauce well, making it a popular choice for many dishes. Some people enjoy it with a classic marinara sauce, while others prefer it with a creamy Alfredo. Overall, this pasta is a traditional Italian dish that has a rich history and is loved by many.