Place a rack in the middle of your oven. Preheat your oven to 350.
2
Place nuts in a large bowl. When you roast the nuts, roast each variety in separate glass or ceramic baking dishes as their roasting times vary slightly. You can put two dishes of nuts in the oven at once so long as they fit on the same middle rack. If the nuts are too close to the heating element they''ll burn.
3
Combine agave, oil, cinnamon, salt, and cayenne powder in a glass measuring cup. Pour mixture over nuts and toss to coat completely. Place nuts in a glass baking dish in a single layer. Bake for 12-15 min, stirring after 6 min. Test for doneness at 12 min. Nuts will still be soft when done and will get crisp as they cool.