Crispy oven baked sweet potato fries made with a simple two-ingredient trick. Naturally sweet, perfectly seasoned, and irresistibly crunchy without deep frying.
2 large sweet potatoes (about 1.5 lbs)
1.5 tbsp cornstarch
2 tbsp olive oil
½ tsp salt
Optional: ½ tsp smoked paprika, ¼ tsp garlic powder, pinch of black pepper
Wash and dry sweet potatoes. Peel if desired. Cut into ¼-inch thick matchsticks.
Soak in cold water for 30 minutes to 1 hour.
Drain and dry thoroughly with a clean towel.
Toss with cornstarch until lightly coated.
Add olive oil, salt, and any optional spices. Toss to coat evenly.
Preheat oven to 425°F (220°C). Line a baking sheet with parchment.
Arrange fries in a single layer with space between.
Bake for 15 minutes, flip, and bake another 12–15 minutes.
Let cool 5 minutes before serving.
Do not overcrowd the pan—use two trays if needed. For extra crispness, broil for 2 minutes at the end, watching closely.