Preheat your oven and prepare a baking sheet. You can line it with parchment paper for easy cleanup, though it’s not strictly necessary.
Cube the Sweet Potatoes: Peel your sweet potatoes and cut them into uniform 3/4-inch cubes. Try to keep the pieces as close in size as possible for even roasting. Place the cubed potatoes into a large mixing bowl.
Create the Maple Mixture: In a small bowl, combine the pure maple syrup, melted unsalted butter, olive oil, ground cinnamon, garlic powder, salt, and black pepper. Whisk everything together until well combined.
Coat the Potatoes: Pour the maple mixture over the cubed sweet potatoes in the large bowl. Gently toss everything together, ensuring each potato cube is thoroughly coated in the sweet and savory glaze.
Arrange for Roasting: Spread the coated sweet potato cubes in a single layer on your prepared baking sheet. Avoid overcrowding the pan, as this can lead to steaming rather than roasting, and you won’t achieve those lovely caramelized edges.
Roast to Perfection: Place the baking sheet into the preheated oven. Roast for approximately 30–40 minutes, or until the sweet potatoes are tender when pierced with a fork and have developed beautiful, golden-brown caramelized spots. You’ll want to flip them gently about halfway through the roasting time to ensure even browning on all sides.
Garnish and Serve: Once they are beautifully roasted, remove the baking sheet from the oven. If desired, scatter some fresh rosemary or thyme leaves over the hot potatoes for a burst of fresh aroma and flavor. Serve these Sweet Maple Roasted Sweet Potatoes warm and enjoy!