1 c. butter
1/2 c. dark brown sugar
2 egg yolks, slightly beaten
2 c. flour
1 c. chopped walnuts
2 egg whites
Raspberry jam

Cream butter and sugar. Add egg yolks. Add flour. Roll into small balls. Dip into egg whites, then roll in chopped nuts. Roll again in hand to make each cookie firm. Place on greased cookie sheet and press down center of each cookie with thumb. Bake 5 minutes at 300 degrees.

Remove from oven, set for 1 minute, and press down center again. Fill centers with small amount of jam. Return cookies to oven and bake 15 minutes at 300 degrees.