Preheat 300 degrees. Line a rimmed baking sheet with parchment paper.
In a large bowl, stir together nuts. Set aside.
In a small saucepan, melt butter with brown sugar, curry powder, salt, cumin and cayenne powder over medium heat. Stir until sugar dissolves.
Pour butter mixture over nuts and stir to coat. Spread mixture out on lined baking sheet.
Bake for 25 to 30 minutes until brown, shaking occasionally.
Let cool and store in an airtight container.