Prepare the Dough:

1. In a mixing bowl, cream together butter and granulated sugar until light and fluffy.
2. Gradually add flour, mixing until just combined.
3. Fold in finely chopped pistachios, ensuring they’re evenly distributed throughout the dough.

2. Shape and Chill:

1. Transfer the dough onto a piece of plastic wrap and shape it into a log, approximately 2 inches in diameter.
2. Wrap the dough tightly and refrigerate for at least 1 hour to firm up.

3. Bake the Cookies:

1. Preheat your oven to 325°F (163°C).
2. Line a baking sheet with parchment paper.
3. Remove the dough from the refrigerator and slice it into ¼-inch thick rounds.
4. Place the slices onto the prepared baking sheet, spacing them about 1 inch apart.
5. Bake for 15-20 minutes, or until the edges are just beginning to turn golden brown.
6. Let the cookies cool on the baking sheet for 10 minutes, then transfer to a wire rack to cool completely.

4. Dip in Chocolate:

1. Once the cookies have cooled, melt the chopped dark chocolate in a microwave-safe bowl in 30-second intervals, stirring in between until smooth.
2. Dip half of each cookie into the melted chocolate, allowing any excess to drip off.
3. Place the dipped cookies back onto the wire rack and let the chocolate set completely.

5. Serve:

• Enjoy these delightful cookies with a cup of tea or coffee.