Break the cookies into small pieces and roughly chop some shelled, unsalted pistachios. Mix them in a bowl and set aside.
Finely chop the white chocolate and melt it in a double boiler with coconut oil. Once the chocolate starts to melt, remove it from the heat to prevent burning. If using unsweetened pistachio butter, add powdered sugar now, then stir in the pistachio butter until smooth.
Pour the melted chocolate mixture over the cookie and pistachio pieces. Mix well to coat everything.
Lay two pieces of plastic wrap on top of each other. Pour the mixture onto the wrap and shape it into a log.
For a better shape, roll it inside a sushi mat. Secure it with a rubber band, then wrap it again in plastic wrap.
Place the wrapped salami in the freezer for at least 2 hours until it sets.
While the salami is freezing, finely chop more pistachios. After the salami has set, carefully unwrap it and roll it in the chopped pistachios until fully coated.
Let the salami thaw for about 15 minutes before slicing. This will make it easier to cut and help keep its texture.
Slice and enjoy this rich, nutty treat. It’s a simple yet luxurious dessert that’s sure to impress!