Fun Food Trivia - Guess the Mystery Food

TRIVIA QUESTION: I was first discovered thousands of years ago, growing in the Andes mountains in South America. However, my early ancestors were small and rather bitter tasting. I was introduced to India in the early 17th century, reaching China a short time thereafter. Upon my arrival in Europe I was called a variety of names, some of which had to do with my resemblance to a truffle. Today, I am the main ingredient in an extremely popular snack food that no fast food restaurant would be caught without. What am I? Find out the answer.