This is a cookie and a candy all in one. The cookie component is a crisp sugar-butter cookie. The candy panes, made of crushed sour balls, add a sweet fruity flavor and crunch.
In a small bowl, whisk together the flour, baking powder, and salt.
In a food processor with the metal blade, process the sugar until it is very fine. Cut the butter into a few pieces and add it with the motor running. Process until smooth and creamy. Add the egg and extracts and process until incorporated, scraping the sides o