Crispy Potato Vegan Cheese Sticks

Name: Crispy Potato Vegan Cheese Sticks
Cuisine: American
Ingredients: 1 lb. Yukon gold potatoes, peeled and cut into 1-inch cubes; 1¼ cups unsweetened plant milk, such as almond, soy, cashew, or rice; divided; ¼ teaspoon agar powder; 3 tablespoons nutritional yeast, divided; 1½ teaspoon white wine vinegar; 1 teaspoon lemon juice; ½ of a small garlic clove, minced; ½ teaspoon sea salt, divided; ¼ teaspoon freshly ground black pepper, divided; 3 tablespoons arrowroot powder; ¾ cup whole grain bread crumbs; 1 tablespoon ground flaxseeds; 1 teaspoon Italian seasoning; ¼ teaspoon paprika; 1 cup oil-free marinara sauce