Cream butter and sugar until light.
Beat in extracts and egg yolks.
Add chopped nuts, flour and salt; mix well.
Roll into 1 -inch balls, dip into unbeaten egg whites (this provides the glaze).
Put two inches apart on greased cookie sheets.
Put a whole almond in centre of each ball, and push down to flatten cookie.
Bake in preheated oven at 350°F for about 10 minutes.