Spicy-Sweet Roasted Nuts

12 oz. whole roasted unsalted cashews
7 oz. walnut halves and pieces
7 oz. pecan halves
7 oz. whole almonds
1/3 cup maple syrup
1/4 cup brown sugar
Juice from 1 orange
2 tsp. chipotle chile powder
2 sprigs fresh rosemary
2 tsp. salt

1. Line a half-sheet pan with aluminum foil or parchment paper; coat with cooking spray. Arrange nuts in a single layer on prepared baking sheet. Combine syrup, next 4 ingredients, and 2 tsp. salt in a bowl. Pour over nuts on pan, and toss to coat.
2. Bake at 350° for 25 minutes, stirring every 10 minutes. Remove from oven. Let cool in pan 10 minutes. Transfer to an airtight container.