At a friend's house for shabbos I saw some Frito Lay's Stax potato chips. My first thought was "hey those aren't kosher"! Ah, but they are! Frito Lay has many products that are being supervised by the orthodox union. Only the original flavor of Stax bears the OU symbol and is certified kosher. All other flavors are not as of yet. These chips are a rival to the pringles brand, all of which are kosher but many flavors are dairy. Stax are thicker than pringles so they have a different feel to them.You can pick Stax up at walmart for around $1.