Roughly Chop Pistachios: Begin by roughly chopping the salted pistachios and set them aside.
Prepare Pan: Line a 9-inch x 5-inch loaf pan with parchment paper and set aside.
Melt Ingredients: Set up a double boiler with a heatproof mixing bowl over simmering water. Add almond butter and dark chocolate chips to the bowl, gently melting them over low-medium heat while stirring occasionally.
Mix Well: Once the almond butter and chocolate have melted together, use a wooden spoon or rubber spatula to mix well, ensuring the ingredients are thoroughly combined.
Pour and Spread: Remove from heat and pour the mixture into the lined loaf pan, spreading it out evenly.
Add Pistachios: Sprinkle the chopped pistachios over the chocolate mixture.
Freeze to Set: Place the pan in the freezer for 2-3 hours or until the fudge is completely set.
Slice and Serve: Remove the fudge from the freezer and let it sit at room temperature for about 10 minutes to slightly soften. Slice into bars or squares and enjoy.
Notes
Store: Keep the fudge stored in an airtight container in the refrigerator for 1 week.