What are Pringles chips made of?

Pringles are made of potatoes. More accurately they are made of flaked and dehydrated potatoes. Pringles are potato chips brand by the Procter and Gamble Company. They have same ingredients as any other chips but what makes them different is the way of potato processing. They first take potato flakes add water and all other ingredients such as various spices and then form potato dough. Then they cut dough in certain shape, after which shapes are fried after which they go to packing process.

Sources:

When Were Pringles First Invented at When Guide

Pringles at Wikipedia