Preheat the oven to 375 degrees.
Peel and dice the sweet potatoes then place in a large bowl. Add the melted butter, maple syrup, sea salt and freshly cracked pepper, to taste. Toss well to coat evenly.
Pour sweet potatoes onto a baking sheet and place in the oven to roast for 30 minutes, stirring halfway through bake time.
Remove from oven and serve immediately. Enjoy.