01 - Preheat the oven to 425°F. Line a large baking sheet with parchment paper.
02 - Cut sweet potatoes into 1/2 inch thick fries and place in a large bowl.
03 - Toss fries with olive oil, optional cornstarch, smoked paprika, garlic powder, sea salt, and black pepper until evenly coated.
04 - Arrange fries in a single layer on the prepared baking sheet, ensuring they do not touch.
05 - Bake for 15 minutes, then flip fries with a spatula and bake an additional 15 minutes until golden and crispy at the edges.
06 - While the fries bake, combine Greek yogurt, mayonnaise, lemon juice, Dijon mustard, minced garlic, and chopped herbs in a small bowl. Mix well and season with salt and pepper.
07 - Serve the fries hot alongside the prepared dip.