Preheat the oven to 425°F (220°C). EXTRA CRISPY TIP: Preheat your baking sheet in the oven before adding the potatoes. Peel (or leave skins on for extra texture) and cut the sweet potatoes into roughly ½-inch cubes. Try to keep them uniform so they cook evenly.
In a large bowl, toss the cubes with oil, salt, pepper, smoked paprika, onion powder, garlic powder, dried basil, dried oregano, cayenne (if using), and brown sugar (if using). Make sure each piece is nicely coated.
Spread the sweet potatoes in a single layer on a large baking sheet. Don’t overcrowd - spacing is key for crispy edges instead of steaming.
Roast for about 30 minutes, flipping or tossing halfway through (around the 10-15 minute mark) to promote even browning. Look for golden, caramelized edges and tender centers.
Remove from oven and immediately sprinkle with chopped herbs, a drizzle of lime juice, coarse sea salt, and chili flakes for a bright, spicy finish.
Enjoy! Serve hot as a side dish or as part of your meal (tacos, grain bowls, salads, you name it!)