I've been to Costco many times, have never seen seeded buns. Just the sprinkled seasoning or whatever the heck this is;
I had the churro from Costco once a few months back and it wasn't great. Maybe I'll give it another try
I had relish for the first time a couple months ago and it was fucking repulsive. Was like putting a sour syrup on a hot dog. Only freaks would like that