1/3 c. brown sugar
1/4 c. butter, softened
1 egg
1/2 tsp. vanilla extract
1 c. flour
1/4 tsp. salt
3/4 c. minced walnuts (optional)
Spreadable fruit or jelly

Preheat oven to 375 degrees. Mix brown sugar, egg and vanilla. Stir in flour and salt. Roll dough into 1-inch balls. Roll in nuts, if desired. Place on ungreased cookie sheet. Press on each cookie center to form indentation. Fill each thumbprint with spreadable fruit. Bake 10-12 minutes.