Thumbprint Cookies I - cooking recipe

Ingredients

1/2 cup butter, softened
1/4 cup packed brown sugar
1 egg
1/2 teaspoon vanilla extract
1 cup all-purpose flour
1/4 cup finely chopped walnuts
2/3 cup any flavor fruit jam
1/4 teaspoon salt

Preparation

Preheat oven to 300 degrees F. Grease cookie sheets.
Separate egg, reserving egg white. Cream butter or margarine, sugar, and egg yolk.
Add vanilla, flour and salt, mixing well.
Shape dough into balls. Roll in egg white, then walnuts. Place on cookie sheets about 2 inches apart. Bake for 5 minutes.
Remove cookies from oven. With thumb, dent each cookie. Put jelly or preserves in each thumbprint. Bake for another 8 minutes.