Viennese Sand Cookies Recipe

Directions:

1. In large mixer bowl, cream together 1 cup of the butter, the 1 cup granulated sugar, egg yolk, vanilla and flour. Cover dough and chill at least 2 hours.
2. Preheat oven to 325 degrees.
3. Make 72 balls of dough the size of small walnuts. Place two inches apart on ungreased cookie sheets. Dip bottom of small glass iinto sugar and use to flatten each ball to 1/8 inch thickness.
4. Bake in preheated oven 10-12 minutes, or until cookies are lightly colored with slightly browned edges. Place on cooling rack.
5. Prepare filling: Combine powdered sugar, and another 1/2 cup butter and lemon juice. Filling may be colored red or green with a couple drops of food coloring, if desired. Place filling on one cookie and cover with another, repeating until you have 36 filled sandwiches.
6. In microwave heat chocolate and remaining 1 tablespoon butter until just melted. Dip an edge of each cookie into chocolate, then in nuts.