Swedish Cookies

1/2 C butter
1/4 C sugar
1 egg yolk
1 C flour
1 egg white
Finely chopped nuts
Cream butter and sugar, add egg yolk, then flour. Roll into small balls and dip into unbeaten egg white and roll in chopped nuts. Place on a greased baking sheet. Flatten with the bottom of a glass. Preheat oven to 350°. Bake cookies 5 minutes and remove from oven. Make a small indentation in the center of each cookie. Place a small amount of red jelly(red raspberry or strawberry) in the indent. Return cookies to oven and bake for an additional 15 minutes. Makes 1 dozen.