Cajun Fries

Name: Cajun Fries
Ingredients: 2 pounds large russet potatoes (about 4); 1 1/2 teaspoons kosher salt, plus more as needed; 1 1/2 teaspoons onion powder; 1 teaspoon garlic powder; 1 teaspoon smoked paprika; 3/4 teaspoon dried thyme; 1/2 teaspoon cayenne pepper; 1/2 teaspoon freshly ground black pepper; Cooking spray (if baking); 2 quarts canola or vegetable oil, for deep frying (or 3 tablespoons if baking); 1 tablespoon finely chopped fresh parsley leaves, for garnish (optional); Remoulade , fry sauce , or ketchup, for serving