Crispy Oven Roasted Blue Potatoes

1 lb blue/purple potatoes unpeeled and cut into wedges2 1/2 tbsp olive oil1 1/2 tsp sea salt1 tsp sugar2 tsp smoked sweet paprika1/2 tsp black pepper1/2 tsp ground garlic1/2 tsp coriander2 tbsp potato starch or cornstarch optional for more crispy fries2 tbsp potato starch or cornstarch optional for more crispy friesfresh herbs - optional (rosemary, thyme, oregano, parsley)Heat oven to 400°F. Cut the potatoes evenly in strips or wedges.Place potatoes, starch, and 1/2 teaspoon of the salt in a mixing bowl and toss. If not using starch, just exclude and go to next step.Coat the potato in oilTransfer to a baking sheet: Spread the coated potatoes out into a single layer on an ungreased baking sheet. Roast 15 minutes then flip and roast another 5 to 10 minutes until potatoes develop crispy exterior.While potatoes are roasting, combine spice ingredients mixing well.Once potatoes are done, allow to cool a few minutes then season and serve.