Almond Paste Cookies

1/2 pound almond paste
2 egg whites
1/2 cup granulated sugar
1/2 cup confectioners' sugar
1/4 cup all-purpose flour
Pinch of salt
2 ounces slivered almonds
Maraschino cherries

Mix almond paste and egg whites with hands. Add dry ingredients and mix well. Roll into balls; roll into slivered almonds. Place on foil lined cookie sheet. Press thumbprint into ball. Place 1/2 or 1/4 maraschino cherry in indentation. Bake at 300 degrees F for 15 to 20 minutes.