Preheat oven to 3 25. Butter two baking sheets. Mix flour and powdered sugar in large bowl. With mixer at medium speed, beat in butter and egg yolk until well blended. Mix in almond extract, almonds and chocolate chips. Form the dough into balls the size of walnuts land put 1 inch apart on prepared baking sheets. Bake until just golden, 15 to 20 minutes. Cool on sheets until cookies firm slightly, about 5 minutes. Transfer to wire racks to cool completely.
Makes about 30