3/4 c. butter
3/4 c. sugar
1 egg yolk
1 tsp. vanilla
1 1/2 c. sifted flour
3/4 c. potato chips
1/2 c. chopped nuts

Cream butter and sugar. Add remaining ingredients and mix well. Roll into balls the size of walnuts and place on ungreased cookie sheet. Flatten cookies with a fork. Bake 350 degrees for 12 minutes. 3 dozen cookies.