1 ½ cups whole unblanched almonds
1 ½ cups raw cashews
1 ½ cups walnuts and/or pecans
1 cup raw pumpkin seeds (pepitas)
2 tablespoons fresh rosemary, minced
2 teaspoons packed brown sugar
1 teaspoon fine sea salt, plus more for sprinkling
½ teaspoon cayenne pepper
2 tablespoons butter, melted