Dark Chocolate Nut Clusters

Preheat oven to 325°.
Line a rimmed cookie sheet with parchment paper; evenly spread almonds and pistachios onto sheet. Roast 12 minutes. Cool to room temperature.
In a medium saucepan, combine chocolate and salt; melt over low heat, stir until completely melted, about 3–4 minutes. Add almonds and pistachios to chocolate; toss to cover. Pour chocolate covered nuts onto the same lined cookie sheet; spread flat, but keep nuts next to each other in order to form clusters.
Allow to cool at room temperature; refrigerate 30 minutes if chocolate is still sticky. Break into 1- to 2-inch pieces. Store in an airtight container for up to 3 days.

Tip: If the temperature is warm outside, store in the refrigerator.