Sweet, Salty, Spicy Party Nuts

INGREDIENTS

• Cooking spray
• 1 cup untoasted walnut halves
• 1 cup untoasted pecan halves
• 1 cup unsalted, dry roasted almonds
• 1 cup unsalted, dry roasted cashews
• 1 teaspoon salt
• 1/2 teaspoon freshly ground black pepper
• 1/4 teaspoon ground cumin
• 1/4 teaspoon cayenne pepper
• 1/2 cup white sugar
• 1/4 cup water
• 1 tablespoon butter