Preheat oven to 375F. Place chopped sweet potatoes onto a baking sheet and drizzle 4 tablespoons maple syrup and the oil over top. Sprinkle with cinnamon, a pinch of salt, and toss to coat.
Spread potatoes evenly out onto a baking sheet. Add more or less seasonings to suit your taste.
Place pan into the preheated oven and bake for 25-35 minutes or until tender (time will depend on the size of your sweet potatoes chunks.) Mix together melted butter and 2 tablespoons of maple syrup. Place potatoes into serving dish and pour maple butter mixture over top. Stir to coat. Serve hot. Makes about 4-6 servings.