Thumbprint Cookies - cooking recipe

Ingredients

1 c. butter, softened
1 1/2 c. confectioner sugar
1 egg
1 tsp. vanilla
2 1/2 c. flour
egg white
chopped walnuts, finely chopped
strawberry or other preserves

Preparation

Mix butter, sugar, egg and vanilla thoroughly.
Blend in flour.
Divide dough in half.
Half of the dough may be left in the refrigerator until ready to use.