01 - Preheat oven to 350°F. Line a baking sheet with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, and salt until well blended.
03 - In a large bowl, beat softened butter and granulated sugar together until light and fluffy, approximately 2-3 minutes.
04 - Add eggs one at a time, beating thoroughly after each addition. Blend in vanilla extract and almond extract until fully incorporated.
05 - Gradually incorporate dry ingredients into wet mixture, stirring until just combined. Avoid overmixing to prevent tough texture.
06 - Divide dough into two equal portions. On a lightly floured surface, shape each portion into a 12-inch log approximately 2 inches wide.
07 - Transfer logs to prepared baking sheet, leaving space between them. Flatten tops slightly with hands. Sprinkle with coarse sugar if desired.
08 - Bake for 25-28 minutes until logs are lightly golden and set. Remove from oven and let cool for 10 minutes.
09 - Reduce oven temperature to 300°F.
10 - Using a sharp serrated knife, cut logs diagonally into 3/4-inch thick slices. Arrange slices cut side down on baking sheet.
11 - Bake for 12-15 minutes until beginning to crisp.
12 - Flip biscotti and bake an additional 10-12 minutes until golden and crisp throughout.
13 - Transfer to wire rack and cool completely. Drizzle with melted white chocolate if desired. Allow chocolate to set before serving.