I used Bob's Red Mill 1:1 baking flour here, but you can definitely use King Arthur if you prefer! Just be sure you are spooning and leveling to measure, don't scoop from the bag.
Serving: 1cookie / Calories: 159kcal / Carbohydrates: 24g / Protein: 2g / Fat: 7g / Saturated Fat: 4g / Polyunsaturated Fat: 0.3g / Monounsaturated Fat: 2g / Trans Fat: 0.2g / Cholesterol: 29mg / Sodium: 44mg / Potassium: 14mg / Fiber: 1g / Sugar: 14g / Vitamin A: 206IU / Vitamin C: 1mg / Calcium: 16mg / Iron: 1mg