Purple Sweet Potato Fries with Herby Tahini Sauce

Ingredients

• 2 pounds purple sweet potatoes (regular orange ones will also work)
• 2 tablespoons neutral high heat oil (we used sunflower, but avocado oil is good too)
• 1 tablespoon Cornstarch
• 1 1⁄2 teaspoon Salt (plus more after they come out of the oven)
• ---FOR THE SAUCE---
• 3⁄4 cups tahini
• 2 tablespoons Lemon juice
• 3 tablespoons fresh parsley
• 2 tablespoons fresh basil
• 1 teaspoon Salt
• 1⁄4 teaspoon Garlic Powder
• 1⁄3 cup Water (up to 1/2 cup, add slowly!)