Now here's an interesting recipe. I'm not really sure of the history of these but they date back to at least the 40's and probably before. They originated in the Baltimore area with the original recipe being attributed Harley Brinsfield and his chain of Harley's Sandwich Shops, but they were also sold at the ubiquitous Little Tavern Shops and Hutzler's Department Store where they were sold at the lunch counter.
While there are many iterations to this recipe this is the best one, staying true to it's roots. The flavor is slightly sweet, slightly salty with a crumbly texture that just melts in your mouth. Use a thin standard flavor potato chip like Utz, Lays, Golden Flake, etc.
Potato Chip Cookies
1C Butter (2 sticks), softened
1 1/2C Flour
1/2C Potato Chips, crushed
1/2C Chopped Nuts
1 Egg Yolk
Cream together butter and sugar in mixer. Add remaining ingredients (except powdered sugar) and beat together until well blended. Preheat oven to 350°, drop cookie dough by teaspoons onto ungreased cookie sheet and bake on center rack 15mins. Cool on wire rack and while slightly warm dust liberally with powdered sugar.