How To make Dainty Sandwich Cookies

1 c Butter; softened
2/3 c Sugar
2 Egg yolks
2 1/2 c All-purpose flour
1/4 ts Salt
1 tb Powdered sugar; 1 to 2
1/2 c Sugar
1/2 c Ground blanched almonds
2 Egg whites
1 1/2 c Raspberry preserves
Powdered sugar (optional) 1/2 c Semisweet chocolate morsels
Melted Recipe by: Southern Living
Cream butter; gradually add 2/3 cup sugar, beating at medium speed of an electric mixer until light and fluffy. Add egg yolks, one at a time, beating well. Combine flour and salt; add to creamed mixture, beating well. Shape dough into a ball; cover and chill at least 2 hours. Divide dough in half; store 1 portion in refrigerator. Sift powdered sugar lightly over work surface. Roll half of dough to 1/8-inch thickness; cut with a 2-1/2-inch round cutter. Roll remaining dough as before; cut with a 2-1/2-inch doughnut cutter, reserving centers. Chill
dough, if necessary. Combine 1/2 cup sugar and almonds; mix well. Beat egg whites until frothy. Brush one side of all cookie cutouts with egg white, and coat with almond mixture; place coated side up on lightly greased cookie sheets. Bake at 375 degrees for 8 to 10 minutes or until lightly browned.
Cool on wire racks. Repeat procedure with remaining dough. Raspberry Sandwich Cookies: Spread uncoated side of each solid cookie with a thin layer of raspberry preserves. (Cookies are very delicate and must be handled carefully.) Lightly dust almond side of doughnut-shaped cookies with powdered sugar, if desired; place sugar side up on top of CHOCOLATE SANDWICH COOKIES: Using half of reserved cookie centers, spread a thin layer of melted chocolate on side without almonds. Top with remaining cookie centers, almond side up. Drizzle tops of cookies with remaining chocolate, -----