Nutty Roca Cookies

Directions

1. 1
   Cream butter and sugar, add egg yolk and vanilla.
2. 2
   Stir in flour.
3. 3
   Spread mixture thinly on greased cookie sheet.
4. 4
   Bake at 350F (180C) F for 15 to 20 minutes.
5. 5
   Melt chocolate over hot water and spread over warm baked cookies.
6. 6
   Sprinkle on nuts and press them firmly.
7. 7
   Cut in bars while still warm.
8. 8
   Let stand until chocolate is dry.