1: Rinse and pat dry the sliced potatoes.
2: Combine flour, cornstarch, parsley, garlic powder, onion powder, Cajun seasoning, salt, and black pepper in a bowl.
3: Gradually add water to achieve a thick batter consistency.
4: Mix well until smooth.
5: Coat potato slices evenly with the batter.
6: Heat oil in a deep frying pan to 350°F (180°C).
7: Fry potato slices in batches until golden brown (6-8 minutes) on medium low or until fluffy cooked.
8: Drain excess oil on a cooling rack.
9: Whisk together mayonnaise, ketchup, Dijon mustard, hot sauce, garlic powder, onion powder, red chili flakes, salt, and black pepper in a separate bowl.
10: Mix until smooth.
11: Serve crispy potatoes with signature fry sauce for dipping.
