Jam Thumbprint Cookies - cooking recipe

Ingredients

1/2 cup butter or 1/2 cup margarine, softened
1/4 cup brown sugar
1 large egg, separated
1/2 teaspoon vanilla extract
1 cup all-purpose flour
1/4 teaspoon salt
1 cup walnuts, finely chopped
jam, any flavour (I prefer apricot jam)

Preparation

Preheat oven to 350 degrees F.
In a medium bowl, cream the butter with brown sugar until light and fluffy, then add the egg yolk and vanilla extract, mixing well.
Add the flour and salt to the creamed mixture, and mix just until the ingredients form a ball.
In a shallow dish, beat egg white slightly. Shape dough into 1 inch balls then roll in the egg white, then the nuts.
Place the cookies on an ungreased cookie sheet then bake for 5 minutes. Remove from the oven then make the indentation, then bake an additional 7 to 10 minutes.
Remove the cookies to a cooling rack. Once cool, fill with the jam of your choice,.