Step 1: Preheat your oven to 350°F (175°C).
Step 2: In a large mixing bowl, whisk together the flour, sugar, baking powder, and cinnamon.
Step 3: In a separate bowl, beat the eggs and vanilla extract, then gradually mix into the dry ingredients.
Step 4: Gently fold in the whole unblanched almonds.
Step 5: Transfer the dough to a floured surface and shape into two logs about 12 inches long.
Step 6: Bake the logs for about 25 minutes or until firm and lightly golden.
Step 7: Allow to cool for 10 minutes, then slice logs diagonally into 1-inch thick pieces.
Step 8: Lay the slices cut-side down on the baking sheet and bake for an additional 15-20 minutes until dry and crisp.
Step 9: Transfer to a cooling rack and allow to cool completely before enjoying.
