Preheat the oven to 375℉ and line a baking sheet with parchment paper.
In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
Using a stand mixer, or electric mixer, cream the butter until fluffy, about 2 minutes. Add the sugar and continue to beat until incorporated. Then add the eggs, almond, and vanilla extracts and mix until combined, scraping the bowl as necessary.
Gradually add the flour mixture and mix until just combined, then fold in the chocolate chips and almonds. The dough will be very soft.
Onto a lightly floured surface or parchment paper, turn the dough out and divide in half. Shape each dough into 9-inch logs. Bake 20-25 minutes, until the edges of the logs are golden; then cool on the rack for 10-15 minutes.
Using a serrated knife, diagonally slice each baked log into 1/2-inch cookies and lay them on their sides on the parchment-lined baking sheet.
Bake sliced biscotti for 10-12 minutes, or until golden around the edges and dry to the touch. Do not overbake.
Melted Chocolate Dip
Melt the chocolate and combine the oil until smooth. Using a spoon, coat half of the biscotti with chocolate, shaking off the excess. Place on a parchment-lined baking sheet and sprinkle with flaky sea salt. Refrigerate until the chocolate is set.