3 sticks butter
1 1/2 c. sugar
2 egg yolks
1 tsp. vanilla
3 c. all-purpose flour
2 c. crushed potato chips
1 c. chopped nuts

Cream first 4 ingredients well. Add flour, blend in potato chips and nuts. Roll into walnut-sized balls. Flatten and bake at 350 degrees for 12 to 15 minutes.