Preheat oven to 350 degrees F. Line two cookies sheets with parchment paper or a silpat. Set aside.
Add grated almond paste, flour, sugar, baking powder and salt to a large bowl. Mix throughly. Add cold butter and work into the flour mixture. Mix until crumbly.
In a medium bowl, add egg whites and vanilla extract. Mix until eggs become frothy. Add egg mixture to the flour mixture and mix until combined.
Add caramel bits and mix.
Transfer to dough to a lightly floured surface and work into a rectangle, approximately 10 1/2 by 4 inches. Transfer to prepared baking sheet.
Bake for 20 minutes, then remove from oven and let sit 10 minutes.
Cut dough in half, length wise. Making two log forms. Then transfer one to the other prepared baking sheet. Slice each log into 1-inch biscotti pieces and arrange each biscotti on its side.
Bake another 20-23 minutes. Remove from oven and place on a wire rack. Let cool completely before applying chocolate drizzle.
In a small bowl, add chocolate and microwave for 30 - 60 seconds. Stir until melted through. Drizzle over biscotti and let sit until harden.
Serve & Enjoy!