Step 1

Preheat the Traeger to 325°, or as close as you can get to that, according to factory directions.

Step 2

Wash and peel the sweet potatoes and yams. Slice into 1/4 inch thick rounds.

Step 3

Spray your grill-safe 10x13 inch baking dish with baking spray, and layer the rounds into it, alternating between yams and sweet potatoes.

Step 4

In a small non-stick pot, combine the butter, maple syrup, and orange juice. Heat over medium heat, stirring frequently, until the butter is melted. Let simmer for 5 minutes. Remove from heat and set aside.

Step 5

Pour the sauce over the layered sweet potatoes and yams. Sprinkle with salt and cinnamon. Cover tightly with foil.

Step 6

Place onto the grill for 30 minutes, and then remove the foil and continue grilling for an additional 15-30 minutes, or until the potatoes are tender and caramelized.