01 - Preheat oven to 350°F. Line a baking sheet with parchment paper.
02 - In a medium bowl, whisk together all-purpose flour, baking powder, ground cinnamon, and salt until evenly distributed.
03 - Using an electric mixer, beat unsalted butter and granulated sugar until pale and fluffy. Incorporate eggs one at a time, blending thoroughly after each addition. Mix in vanilla extract.
04 - Gradually add dry ingredients to the butter mixture, mixing on low speed just until combined.
05 - Fold in chopped dried apples and caramel candies until evenly distributed throughout the dough.
06 - Divide the dough in half. On your prepared baking sheet, form each portion into a log approximately 12 inches long and 2 inches wide. Gently flatten the tops.
07 - Bake logs for 25 minutes or until lightly golden. Remove from oven and cool for 10 minutes. Reduce oven temperature to 325°F.
08 - Using a serrated knife, slice logs diagonally into 3/4-inch thick strips. Arrange slices cut side down on the baking sheet.
09 - Bake biscotti for 12 minutes. Flip each piece, then bake for an additional 8–10 minutes until crisp and dry. Transfer to a wire rack and let cool completely.
10 - If desired, drizzle cooled dunkers with caramel sauce before serving.