Directions:
In a medium bowl, whisk together the flour, salt, and baking powder; set aside. In a large bowl, whisk together olive oil and sugar until combined. Whisk in egg. Add dry ingredients to bowl and stir until dough comes together. Stir in pistachios. Divide dough in two and wrap each half in plastic wrap and chill for 2 hours or more.
Adjust oven rack to the middle position and preheat oven to 350°F. Line baking sheet with parchment paper.
Form each half of dough into an approximately 3 1/2-inch by 8-inch log and place each on each baking sheet. Bake until golden, 35 to 45 minutes. Take cookies out of oven and decrease oven temperature to 300°F.
When cool enough to handle, use a serrated knife to cut logs on the bias to form 1-inch wide cookies. Place cookies, cut side down, on baking sheet. Place back in oven and bake until dry and toasted, about 10 to 15 minutes more.
When biscotti are completely cool drizzle with melted chocolate.
I also did a variation with half pistachios, and half white chocolate chips
An Olive Tap Recipe Adaptation from Serious Eats by Melanie, Long Grove, IL
