1/2 to 1 teaspoon sambal (spicy Asian-style chili paste)
Instructions
Peel the sweet potatoes and cut them into sticks about 1/4-inch thick and 1/4-inch wide. Keep them as uniform as possible. Put the sweet potato sticks in a bowl and cover them with cold water. Let them soak for 20 minutes.
Preheat the oven to 425 F.
Line two rimmed baking sheets (jelly roll pans) with parchment paper or nonstick foil.
Drain the sweet potato sticks and pat them with paper towels to dry. Return the sweet potatoes to the dry bowl. Add the olive oil and toss to coat the fries.
Combine the cornstarch and kosher salt and blend well. Sprinkle the mixture evenly over the sweet potatoes and toss until well distributed.
Spread the fries out in the pans in a single layer.
Bake for 15 minutes; flip the fries and return them to the oven for another 10 to 15 minutes. They should begin to brown slightly. Let them cool for about 3 to 5 minutes.
Meanwhile, combine the chili mayo ingredients and stir to blend.
Sprinkle the fries with more salt, if desired, and serve hot with the dip.