Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper. Beat softened butter and granulated sugar together until light and fluffy using a hand or stand mixer. Add eggs one at a time, mixing well after each addition. Stir in orange zest.
Combine Dry Ingredients
In a separate bowl, whisk together all-purpose flour, baking powder, and salt. Gradually add dry ingredients to wet mixture, stirring until just combined. Fold in chopped almonds evenly.
Shape and First Bake
Divide dough in half. Shape each half into a 12-inch long, 2-inch wide log on the prepared baking sheet, flattening the top slightly. Bake for 25-30 minutes until golden and firm. Cool on baking sheet for 10 minutes.
Slice and Second Bake
Reduce oven temperature to 325°F (160°C). Cut each log diagonally into 1/2-inch slices with a sharp knife. Arrange slices cut side down on baking sheet. Bake 10-15 minutes, flipping halfway until dry and crunchy.
Melt and Dip the Chocolate
Melt dark chocolate with vegetable oil in a double boiler or microwave until smooth and glossy. Dip one end of each biscotti into chocolate and place on parchment-lined sheet to set. Chill briefly if desired.
Enjoy Your Cookies
Once chocolate is firm, enjoy your Chocolate-Dipped Orange Biscotti Cookies! Store extras in an airtight container to keep crisp.
Equipment
Mixing Bowls
Hand Mixer or Stand Mixer
Baking Sheet
Parchment paper or silicone baking mat
Sharp knife
Double boiler or microwave-safe bowl
Cooling Rack
Notes
Store biscotti in an airtight container at room temperature for up to two weeks to maintain crunch.
Use a sharp serrated knife and gentle sawing motion to slice biscotti evenly without crumbling.
For a dairy-free option, replace butter with plant-based margarine or coconut oil.
Dark chocolate with at least 60-70% cocoa provides the best flavor and glossy finish.
To avoid chocolate seizing, keep all utensils dry and melt chocolate in short microwave bursts or a double boiler.