Ingredients:

3/4 cup brown sugar (packed)
1/2 cup butter  
1 cup chopped walnuts
1/2 cup semi sweet chocolate chips


Preparation:

Butter a 9x9x2 pan.
Spread nuts in pan.
Heat sugar and butter in medium size saucepan until boiling. 
Lower heat to medium. Boil over medium heat for 7 minutes.
Spread over nuts in pan.  
Sprinkle chocolate chips over hot mixture
Place a cookie sheet over pan to melt chocolate chips. 
Cut into squares while hot, then refrigerate until hard.