1 c. butter or may use part lard
1 c. brown sugar
1 egg yolk
1 tsp. vanilla
2 c. flour
1 c. nuts (optional)

Do not grease pan. Bake 30 minutes at 350 degrees.

FROSTING:

1 c. chocolate chips

Put the chips on when bars are done, then put in oven about 5 minutes to melt.