Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
In a medium bowl, whisk together flour, baking powder, and salt.
In a separate bowl, whisk together sugar, oil, eggs, and vanilla extract. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Fold in the toasted almonds.
Turn the dough out onto a lightly floured surface and shape it into a log approximately 12 inches long and 3 inches wide. Place the log on the prepared baking sheet.
Bake for 25 minutes, or until the log is lightly golden.
Remove from oven and let cool for 10 minutes. Reduce oven temperature to 325°F (160°C).
Using a serrated knife, slice the log into 1/2-inch thick slices. Place the slices cut-side up on the baking sheet.
Bake for 10 minutes on each side, or until the biscotti are golden brown and crisp. Let cool completely on the baking sheet before serving.
Notes
Store the biscotti in an airtight container at room temperature for up to 2 weeks.