Preheat oven to 350 degrees. Grease a 9” x 13” pan; set aside. Process flour and confectioners’ sugar in food processor several seconds. Add butter and process until dough comes together. Press mixture evenly into prepared pan. Lightly brush egg white on top of the mixture. Base 25 minutes, or until golden. Immediately spread preserves evenly over warm crust. Press popcorn into preserves; let cool. Melt chocolate chips in small zip lock freezer bag. Heat in microwave 30 seconds, or until melted. Snip corner of bag and drizzle chocolate over cooled popcorn. Cool and cut into bars.