Preheat oven to 350°F and line 2 baking sheets with parchment paper. Set aside.
In the bowl of a stand mixer fitted with the paddle attachment, cream the butter and sugar together.
4 tablespoons unsalted butter, ½ cup granulated sugar
Add the eggs and vanilla and mix until well combined. Make sure to scrape down the sides of the bowl as necessary.
2 large eggs, 1 teaspoon pure vanilla extract
Add the flour, almond flour, and baking powder. Mix just until combined.
1¼ cups all-purpose flour, ¼ cup almond flour, 1 teaspoon baking powder
Divide the batter in half and place each half on a parchment-lined baking sheet. Wet your hands and pat the dough into a loaf about 10 inches long, 2½ inches wide, and ½-inch thick.
Bake the biscotti for 18-20 minutes or until the edges become golden brown.
Allow the biscotti to cool, then slice each loaf into 10 (½-inch thick) slices (I like to slice them on an angle but that’s up to you).
Place the biscotti cut side up on the baking sheet and bake for another 15-17 minutes, or until the biscotti are dried and crisp. Allow the biscotti to cool completely before dipping in chocolate.
To make the dipping chocolate, add the chocolate chips to a small microwave-safe bowl and microwave until melted, about 2 minutes, stirring every 30 seconds. Dip or drizzle the chocolate over the biscotti and place them back on the baking sheet.
½ cup chocolate chips
Transfer the biscotti to the refrigerator and allow the chocolate to set for about 30 minutes.