1. Preheat oven to 300ºF. Line 2 large baking sheets with parchment, and mist lightly with cooking spray. Mix all nuts together in a large bowl.
2. Melt butter with brown sugar, 6 Tbsp. water, curry, salt, cumin and cayenne in a small pan over medium-low heat, stirring until sugar dissolves. Pour over nuts and stir to evenly coat.
3. Divide nuts between baking sheets and spread into a single layer. Bake until glazed and deep brown, shaking pans occasionally, 25 to 30 minutes. Let cool on sheets, breaking up any clumps. Store in an airtight container at room temperature for up to 10 days.