Begin by preheating your oven to 425°F (220°C). Line your baking sheet with parchment paper or a silicone baking mat for easy cleanup and to prevent sticking.
Peel two large sweet potatoes and cut them into evenly sized fries—aim for about 1/4 to 1/2 inch thick for uniform cooking.
Place the sweet potato fries in a large mixing bowl. Drizzle with olive oil, then sprinkle paprika, garlic powder, salt, black pepper, and cayenne pepper if using. Toss until fries are well coated.
Spread fries in a single layer on the prepared baking sheet, avoiding overcrowding to ensure crispiness.
Bake for 15 minutes, then flip each fry using tongs or a spatula. Bake for another 10-15 minutes until fries are golden and crisp on the edges but tender inside.
Remove from oven and let fries cool slightly to crisp up more. Serve immediately with your favorite dipping sauce or as a side dish.