1/4 cup packed brown sugar
1 cup butter, softened
1/2 teaspoon vanilla
1 large egg yolk
1 cup flour
1/4 teaspoon salt
1 large egg white
1 cup finely chopped nuts (I use walnuts, but you can use the nut of your choice)
About 6 tablespoons jelly or jam
- Heat oven to 350 degrees F
- Beat brown sugar, butter, vanilla and egg yolk with electric mixer. Stir in flour and salt.
- Shape the dough into 1 inch balls. Beat egg white slightly with fork. Dip each ball into egg white then roll in nuts. Place about 1 inch apart on ungreased cookie sheet. Press thumb into center of each cookie to make indentation, but do not press all the way to the cookie sheet.
- Bake about 10 minutes, or until light brown. Quickly remake indentations with the end of a wooden spoon if necessary. Immediately remove from the cookie sheet to cooling rack. Fill each thumbprint with about 1/2 teaspoon of the jam or jelly.