Almond-Orange-Cardamom Cookies

1 cup slivered almonds
1 cup all-purpose flour
2 teaspoons ground cardamom
1/4 teaspoon salt
1/2 cup unsalted butter, softened
1/3 cup powdered sugar
1 egg yolk
2 teaspoons grated orange zest
1/2 teaspoon almond extract
28 whole natural almonds
Spread almonds onto an ungreased baking pan. Place in a 350ºF oven and bake about 7 minutes or until golden brown and fragrant; stir once [...]