Begin by preheating your oven to 375°F (190°C). Coat a sheet pan with cooking spray to prevent sticking during baking. This will ensure your sweet potatoes roast evenly and cleanly.

Peel the sweet potatoes and cut them into 1-inch pieces. This size ensures they cook through thoroughly while maintaining a pleasing texture.

In a small bowl, whisk together the melted butter, maple syrup, ground cinnamon, and salt. Mixing these ingredients creates a flavorful coating that complements the natural sweetness of the potatoes.

Place the sweet potatoes in a single layer on the prepared sheet pan. Pour the maple butter mixture over the sweet potatoes. Use a spoon or your hands to toss the sweet potatoes, ensuring each piece is evenly coated with the butter mixture for even flavor distribution.

Bake the sweet potatoes in the oven for 35 minutes. Stir the potatoes once halfway through the baking time to ensure even cooking and caramelization. The sweet potatoes should be tender and slightly caramelized when finished.

Remove the sweet potatoes from the oven and serve immediately. Enjoy them as a delicious side dish full of sweet, buttery, and cinnamon flavors.