Preheat your oven to 425°F (200°C). Peel the potatoes (if you'd like) and cut into ½-inch cubes.
Add the oil, cumin, garlic, paprika, salt, and pepper to the sweet potatoes. Use your hands to toss everything together until it's well mixed.
Arrange the sweet potato in a single layer on a large baking sheet, making sure there's space in between the cubes.
Roast for 30 to 35 minutes, stirring the potatoes half way through to ensure all sides are cooked through.
